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A153149 Coefficients of the eighth order mock theta function S_1(q) 7
1, 0, 0, 1, 1, -1, -1, 1, 2, 0, -2, 1, 2, -2, -2, 2, 3, -1, -2, 2, 2, -3, -4, 3, 5, -2, -4, 3, 5, -4, -6, 4, 7, -4, -7, 5, 7, -6, -9, 7, 11, -6, -10, 7, 11, -9, -14, 9, 15, -9, -14, 11, 16, -13, -19, 13, 21, -12, -22, 15, 23, -18, -26, 19, 30, -19, -30, 21, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,9

LINKS

Table of n, a(n) for n=0..68.

B. Gordon and R. J. McIntosh, Some eighth order mock theta functions, J. London Math. Soc. 62 (2000), 321-335.

FORMULA

G.f.: Sum_{n >= 0} q^(n^2+2n) (1+q)(1+q^3)...(1+q^(2n-1))/(1+q^2)(1+q^4)...(1+q^(2n))

PROG

(PARI) lista(nn) = my(q = qq + O(qq^nn)); gf = sum(n = 0, nn, q^(n^2+2*n) * prod(k = 1, n, 1 + q^(2*k-1)) / prod(k = 1, n, 1 + q^(2*k))); Vec(gf) \\ Michel Marcus, Jun 18 2013

CROSSREFS

Other '8th order' mock theta functions are at A153148, A153155, A153156, A153172, A153174, A153176, A153178.

Sequence in context: A141454 A219791 A029345 * A249072 A174007 A045450

Adjacent sequences:  A153146 A153147 A153148 * A153150 A153151 A153152

KEYWORD

sign

AUTHOR

Jeremy Lovejoy, Dec 19 2008

EXTENSIONS

More terms from Michel Marcus, Feb 23 2015

STATUS

approved

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Last modified December 8 10:49 EST 2016. Contains 278939 sequences.