|
|
A022688
|
|
Expansion of Product_{m>=1} (1-m*q^m)^28.
|
|
2
|
|
|
1, -28, 322, -1792, 3059, 18788, -109970, 96232, 739669, -1676136, -2594074, 6667864, 22486226, -26768980, -188468912, 174822312, 845108712, -60897844, -3216451658, -5497042096, 11876402839, 31175102772
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
LINKS
|
|
|
MATHEMATICA
|
With[{nmax = 50}, CoefficientList[Series[Product[(1 - k*q^k)^28, {k, 1, nmax}], {q, 0, nmax}], q]] (* G. C. Greubel, Jul 19 2018 *)
|
|
PROG
|
(PARI) m=50; q='q+O('q^m); Vec(prod(n=1, m, (1-n*q^n)^28)) \\ G. C. Greubel, Jul 19 2018
(Magma) Coefficients(&*[(1-m*x^m)^28:m in [1..40]])[1..40] where x is PolynomialRing(Integers()).1; // G. C. Greubel, Jul 19 2018
|
|
CROSSREFS
|
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|