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A265833
Expansion of Product_{k>=1} 1/(1 - (5*k-3)*x^(5*k-3)).
4
1, 0, 2, 0, 4, 0, 8, 7, 16, 14, 32, 28, 76, 56, 201, 112, 402, 241, 804, 566, 1608, 1475, 3238, 2950, 6739, 5900, 14066, 11827, 30533, 24012, 61066, 49865, 122164, 103846, 245070, 224499, 494374, 449035, 1001635, 898992, 2032082, 1805626, 4181855, 3640890
OFFSET
0,3
LINKS
FORMULA
a(n) ~ c * 2^(n/2), where
c = 2.083307142076305100818196347525098347528893162823662452462... if n is even,
c = 1.350596787589129261746699661559125050005090208149022621867... if n is odd.
MATHEMATICA
nmax = 40; CoefficientList[Series[Product[1/(1 - (5*k-3)*x^(5*k-3)), {k, 1, nmax}], {x, 0, nmax}], x]
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Dec 16 2015
STATUS
approved