|
|
A153178
|
|
Coefficients of the eighth-order mock theta function V_1(q).
|
|
8
|
|
|
0, 1, 1, 1, 2, 3, 3, 4, 5, 6, 8, 9, 11, 14, 16, 19, 23, 27, 31, 37, 43, 49, 58, 66, 76, 89, 101, 115, 132, 150, 170, 194, 219, 247, 280, 315, 354, 399, 447, 500, 562, 627, 699, 781, 869, 967, 1076, 1194, 1323, 1468, 1625, 1796, 1987, 2193, 2418, 2668, 2937, 3231
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,5
|
|
LINKS
|
|
|
FORMULA
|
V_1(q) = Sum_{n >= 0} q^((n+1)^2)(1+q)(1+q^3)...(1+q^(2n-1))/((1-q)(1-q^3)...(1-q^(2n+1))).
|
|
MATHEMATICA
|
nmax = 100; CoefficientList[Series[Sum[x^((k+1)^2) * Product[(1 + x^(2*j - 1)), {j, 1, k}] / Product[(1 - x^(2*j - 1)), {j, 1, k+1}], {k, 0, Floor[Sqrt[nmax]]}], {x, 0, nmax}], x] (* Vaclav Kotesovec, Jun 12 2019 *)
|
|
PROG
|
(PARI) lista(nn) = {my(q = qq + O(qq^nn)); gf = sum(n = 0, nn, q^((n+1)^2) * prod(k = 1, n, 1 + q^(2*k-1)) / prod(k = 0, n, 1 - q^(2*k+1))); for (i=0, nn-1, print1(polcoeff(gf, i), ", "); ); } \\ Michel Marcus, Jun 18 2013
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|