OFFSET
0,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..5000
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]
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Dec 16 2015
STATUS
approved