About this sum $sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}f(n)$ [closed]












3












$begingroup$


Observing this sum
$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}f(n)$$ we got these two results:



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{n}{(2n-1)^2}=frac{8pi}{Gamma^4left(frac{1}{4}right)}tag1$$



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{1}{(2n-1)^3}=-frac{48pi}{Gamma^4left(frac{1}{4}right)}tag2$$



How can we prove them?










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closed as off-topic by mrtaurho, max_zorn, José Carlos Santos, rtybase, Did Jan 27 at 12:12


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – mrtaurho, max_zorn, José Carlos Santos, rtybase, Did

If this question can be reworded to fit the rules in the help center, please edit the question.












  • 1




    $begingroup$
    Clausen's formula for the square of a 2F1, or FL expansions.
    $endgroup$
    – Jack D'Aurizio
    Jan 21 at 20:44


















3












$begingroup$


Observing this sum
$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}f(n)$$ we got these two results:



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{n}{(2n-1)^2}=frac{8pi}{Gamma^4left(frac{1}{4}right)}tag1$$



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{1}{(2n-1)^3}=-frac{48pi}{Gamma^4left(frac{1}{4}right)}tag2$$



How can we prove them?










share|cite|improve this question









$endgroup$



closed as off-topic by mrtaurho, max_zorn, José Carlos Santos, rtybase, Did Jan 27 at 12:12


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – mrtaurho, max_zorn, José Carlos Santos, rtybase, Did

If this question can be reworded to fit the rules in the help center, please edit the question.












  • 1




    $begingroup$
    Clausen's formula for the square of a 2F1, or FL expansions.
    $endgroup$
    – Jack D'Aurizio
    Jan 21 at 20:44
















3












3








3





$begingroup$


Observing this sum
$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}f(n)$$ we got these two results:



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{n}{(2n-1)^2}=frac{8pi}{Gamma^4left(frac{1}{4}right)}tag1$$



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{1}{(2n-1)^3}=-frac{48pi}{Gamma^4left(frac{1}{4}right)}tag2$$



How can we prove them?










share|cite|improve this question









$endgroup$




Observing this sum
$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}f(n)$$ we got these two results:



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{n}{(2n-1)^2}=frac{8pi}{Gamma^4left(frac{1}{4}right)}tag1$$



$$sum_{n=0}^{infty}frac{{2n choose n}^3}{64^n}cdot frac{1}{(2n-1)^3}=-frac{48pi}{Gamma^4left(frac{1}{4}right)}tag2$$



How can we prove them?







sequences-and-series






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Jan 21 at 20:22









user583851user583851

508110




508110




closed as off-topic by mrtaurho, max_zorn, José Carlos Santos, rtybase, Did Jan 27 at 12:12


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – mrtaurho, max_zorn, José Carlos Santos, rtybase, Did

If this question can be reworded to fit the rules in the help center, please edit the question.







closed as off-topic by mrtaurho, max_zorn, José Carlos Santos, rtybase, Did Jan 27 at 12:12


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – mrtaurho, max_zorn, José Carlos Santos, rtybase, Did

If this question can be reworded to fit the rules in the help center, please edit the question.








  • 1




    $begingroup$
    Clausen's formula for the square of a 2F1, or FL expansions.
    $endgroup$
    – Jack D'Aurizio
    Jan 21 at 20:44
















  • 1




    $begingroup$
    Clausen's formula for the square of a 2F1, or FL expansions.
    $endgroup$
    – Jack D'Aurizio
    Jan 21 at 20:44










1




1




$begingroup$
Clausen's formula for the square of a 2F1, or FL expansions.
$endgroup$
– Jack D'Aurizio
Jan 21 at 20:44






$begingroup$
Clausen's formula for the square of a 2F1, or FL expansions.
$endgroup$
– Jack D'Aurizio
Jan 21 at 20:44












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