OFFSET
1,1
COMMENTS
The next term is too large to include.
The next term has more than 3800 digits. - Harvey P. Dale, Sep 13 2020
LINKS
Eric Weisstein's World of Mathematics, Apéry Number
MATHEMATICA
Select[Table[Sum[Binomial[n, k]^2 Binomial[n+k, k]^2, {k, 0, n}], {n, 25}], PrimeQ] (* Harvey P. Dale, Sep 13 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Mar 07 2004
STATUS
approved