OFFSET
0,132
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
M. Koike, On McKay's conjecture, Nagoya Math. J., 95 (1984), 85-89.
FORMULA
Expansion of x * Product_{k>=1} (1 - x^(5*k)) * (1 - x^(19*k)). - Seiichi Manyama, Oct 18 2016
MATHEMATICA
eta = QPochhammer;
CoefficientList[q eta[q^5] eta[q^19] + O[q]^100, q] (* Jean-François Alcover, Feb 21 2021 *)
CROSSREFS
KEYWORD
sign
AUTHOR
STATUS
approved