0,6

a(n) = A000586 for n <= 42.

Charles R Greathouse IV, Table of n, a(n) for n = 0..10000

(PARI) P=1+O(x^1001); forprime(p=2, 1e3, if(bigomega(p+2)<3, P*=1+x^p)); Vec(P) \\ Charles R Greathouse IV, May 13 2013

Cf. A112021, A112020, A109611.

Sequence in context: A126043 A191225 A223893 * A000586 A029399 A249338

Adjacent sequences: A112019 A112020 A112021 * A112023 A112024 A112025

nonn

Reinhard Zumkeller, Aug 26 2005

approved