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A035387
Number of partitions of n into parts 6k+3 or 6k+4.
0
0, 0, 1, 1, 0, 1, 1, 1, 2, 2, 1, 3, 3, 2, 4, 5, 3, 6, 7, 6, 8, 10, 8, 12, 14, 12, 16, 20, 17, 23, 27, 25, 30, 37, 34, 42, 49, 47, 55, 67, 63, 74, 87, 86, 97, 115, 113, 129, 149, 150, 166, 195, 195, 217, 249, 255, 278, 321, 327, 359, 407, 421, 456, 520, 535, 581, 654, 682
OFFSET
1,9
FORMULA
a(n) ~ exp(Pi*sqrt(2*n)/3) * Gamma(2/3) / (4 * 2^(1/6) * sqrt(3) * Pi^(1/3) * n^(5/6)). - Vaclav Kotesovec, Aug 27 2015
MATHEMATICA
nmax = 100; Rest[CoefficientList[Series[Product[1/((1 - x^(6k+3))*(1 - x^(6k+4))), {k, 0, nmax}], {x, 0, nmax}], x]] (* Vaclav Kotesovec, Aug 27 2015 *)
CROSSREFS
Sequence in context: A029266 A325035 A348331 * A242308 A011373 A321783
KEYWORD
nonn
STATUS
approved