438670domain: NAppears in sequencesNumerator in Feinler's formula for unsigned Bernoulli number |B_{2n}|.at n=9A002443Numerator of (2n+1)(2n+2) B_{2n}, where B_n are the Bernoulli numbers. Also numerators of the asymptotic expansion of the polygamma function psi'''(z).at n=10A076549