A027827 Values of k for which 11 divides A000041(k).

6, 8, 12, 15, 16, 17, 18, 20, 21, 25, 28, 29, 31, 32, 35, 37, 38, 39, 41, 42, 43, 49, 50, 51, 52, 54, 56, 58, 59, 61, 62, 64, 72, 74, 75, 78, 81, 82, 83, 84, 85, 87, 94, 96, 98, 104, 105, 107, 108, 109, 116, 117, 118, 119, 125, 127, 128, 129, 130, 131, 138, 140, 148

Offset: 1

Author

R. K. Guy

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A000041, A243935.

Programs

Mathematica

Select[Range[200], Divisible[PartitionsP[#], 11]&] (* Jean-François Alcover, Dec 12 2016 *)

PARI

\ps200 for(n=0,180,if(polcoeff(1/eta(x),n,x)%11==0,print1(n,",")))

PARI

is(n)=numbpart(n)%11==0 \\ Charles R Greathouse IV, Apr 08 2015

Extensions

More terms from Benoit Cloitre, Jun 24 2002

Offset corrected by Amiram Eldar, May 21 2022