0,4

(PARI) a(n) = polcoeff(prod(k=1, n, 1+x^k, 1+x*O(x^n)), n) for(n=0, 23, print(a(n!)))

Cf. A000009.

Adjacent sequences: A064678 A064679 A064680 this_sequence A064682 A064683 A064684

Sequence in context: A071129 A033934 A080179 this_sequence A005936 A090082 A068891

nonn

Jason Earls (zevi_35711(AT)yahoo.com), Oct 10 2001

One more term from Vladeta Jovovic (vladeta(AT)Eunet.yu), Oct 13 2001