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A242844
Number of compositions of n with difference 4 between the number of odd parts and the number of even parts, both counted without multiplicity.
2
24, 60, 144, 330, 684, 1374, 2688, 5106, 9532, 17208, 30856, 55296, 97812, 175926, 316928, 581352, 1083674, 2064346, 4012614, 7957492, 16061208, 32880201, 68032764, 141844516, 297086796, 623794222, 1310685218, 2752470170, 5772036942, 12079693049, 25220161732
OFFSET
16,1
COMMENTS
First odd term is a(37) = 32880201.
LINKS
EXAMPLE
a(16) = 24 = 4!: all permutations of {1,3,5,7}.
CROSSREFS
Column k=4 of A242626.
Sequence in context: A211571 A240524 A250577 * A185445 A321840 A052759
KEYWORD
nonn
AUTHOR
Alois P. Heinz, May 23 2014
STATUS
approved