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A237277 Numbers k such that A000041(k) == 2 (mod 3). 2

%I #12 Feb 09 2021 01:56:54

%S 2,4,6,11,12,13,15,25,29,31,38,42,47,49,56,58,60,65,66,67,69,74,76,78,

%T 79,83,84,85,87,90,92,93,94,96,101,103,105,108,109,114,120,121,123,

%U 126,127,130,131,132,135,136,141,144,145,153,156,159,165,167,171

%N Numbers k such that A000041(k) == 2 (mod 3).

%C The set of positive integers is partitioned by A083214, A237276, and A237277.

%H Clark Kimberling, <a href="/A237277/b237277.txt">Table of n, a(n) for n = 1..1000</a>

%e A000041(6) = 11 == 2 (mod 3).

%t f[n_, k_] := Select[Range[250], Mod[PartitionsP[#], n] == k &]

%t Table[f[3, k], {k, 0, 2}] (* A083214, A237276, A237277 *)

%t Table[f[4, k], {k, 0, 3}] (* A237278-A237281 *)

%Y Cf. A000041, A083214, A237276.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Feb 05 2014

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)