OFFSET
1,1
COMMENTS
Denominator of Bernoulli(2*n)/(2*(2*n)!). - Robert Israel, Sep 18 2016
LINKS
Robert Israel, Table of n, a(n) for n = 1..223
FORMULA
MAPLE
seq(denom(sum(1/(2*k)^(2*n), k=1..infinity)/Pi^(2*n)), n=1..24);
seq(denom(bernoulli(2*n)/2/(2*n)!), n=1..24); # Robert Israel, Sep 18 2016
MATHEMATICA
Table[Denominator[Zeta[2*n]/(2*Pi)^(2*n)], {n, 1, 30}] (* Terry D. Grant, Jun 19 2018 *)
PROG
(PARI) a(n) = denominator(bernfrac(2*n)/(2*(2*n)!)); \\ Michel Marcus, Jul 05 2018
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Martin Renner, Sep 07 2016
STATUS
approved