A237278 Numbers k such that A000041(k) == 0 (mod 4).

11, 15, 21, 26, 30, 55, 58, 59, 62, 66, 70, 74, 75, 78, 80, 84, 94, 96, 98, 100, 106, 108, 109, 112, 113, 116, 117, 120, 122, 124, 125, 126, 128, 130, 131, 133, 135, 136, 137, 141, 142, 149, 153, 154, 171, 179, 180, 187, 191, 200, 205, 206, 230, 231, 236

Offset: 1

Author

Clark Kimberling, Feb 05 2014

Keywords

• nonn
• easy

Comments

The set of positive integers is partitioned by the sequences A237278-A237281.

Examples

			A000041(11) = 56 == 0 (mod 4).
		

Links

• Clark Kimberling, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A000041, A237276, A237279, A237280, A237281, A243935 (see crossrefs).

Cf. A121062.

Programs

Mathematica

f[n_, k_] := Select[Range[250], Mod[PartitionsP[#], n] == k &]
Table[f[4, k], {k, 0, 3}] (* A237278-A237281 *)

PARI

is(n)=numbpart(n)%4==0 \\ Charles R Greathouse IV, Apr 08 2015