OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
D. Ford, J. McKay and S. P. Norton, More on replicable functions, Commun. Algebra 22, No. 13, 5175-5193 (1994).
FORMULA
Expansion of q^(1/4)*(eta(q)*eta(q^2))/(eta(q^3)*eta(q^6)) in powers of q. - G. C. Greubel, Jan 25 2018
EXAMPLE
T24G = 1/q -q^3 -2*q^7 +2*q^11 -q^15 +5*q^23 -3*q^27 -4*q^31 +...
MATHEMATICA
eta[q_]:= q^(1/24)*QPochhammer[q]; a[n_] := SeriesCoefficient[q^(1/4)*(eta[q]*eta[q^2])/(eta[q^3]*eta[q^6]), {q, 0, n}]; Table[a[n], {n, 0, 50}] (* G. C. Greubel, Jan 25 2018)
PROG
(PARI) q='q+O('q^50); Vec((eta(q)*eta(q^2))/(eta(q^3)*eta(q^6))) \\ G. C. Greubel, Jun 19 2018
CROSSREFS
KEYWORD
sign
AUTHOR
Michael Somos, Aug 28 2005
STATUS
approved