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A241544 Number of partitions p of n such that (number of even numbers in p) is a part of p. 2
0, 0, 0, 1, 1, 3, 5, 7, 12, 17, 26, 34, 49, 66, 90, 118, 155, 203, 261, 337, 428, 546, 685, 863, 1075, 1345, 1664, 2060, 2538, 3118, 3816, 4661, 5680, 6901, 8368, 10111, 12207, 14690, 17656, 21155, 25326, 30238, 36058, 42901, 50973, 60438, 71568, 84586 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

Each number in p is counted once, regardless of its multiplicity.

LINKS

Table of n, a(n) for n=0..47.

EXAMPLE

a(6) counts these 5 partitions:  42, 411, 321, 2211, 21111.

MATHEMATICA

z = 50; f[n_] := f[n] = IntegerPartitions[n]; s0[p_] := Count[Mod[DeleteDuplicates[p], 2],  0]; s1[p_] :=

Count[Mod[DeleteDuplicates[p], 2], 1];

Table[Count[f[n], p_ /; MemberQ[p, s0[p]]], {n, 0, z}]   (* A241544 *)

Table[Count[f[n], p_ /; MemberQ[p, s1[p]]], {n, 0, z}]   (* A241545 *)

CROSSREFS

Cf. A241545.

Sequence in context: A070334 A137700 A325267 * A208716 A195821 A208772

Adjacent sequences:  A241541 A241542 A241543 * A241545 A241546 A241547

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 26 2014

STATUS

approved

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Last modified August 5 05:22 EDT 2020. Contains 336209 sequences. (Running on oeis4.)