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A028627 Expansion of (theta_3(z)*theta_3(15z) + theta_2(z)*theta_2(15z))^3. 2
1, 6, 12, 8, 18, 72, 84, 48, 156, 222, 180, 360, 312, 168, 720, 342, 534, 552, 628, 444, 1272, 1008, 600, 1128, 1752, 894, 2520, 1040, 1008, 2520, 2140, 1452, 2796, 1560, 2112, 3024, 3690, 1368, 3576, 3528, 2520, 5040, 3120, 1848, 7560, 3872, 4128, 4392, 4744, 3750 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Jinyuan Wang, Table of n, a(n) for n = 0..1000

PROG

(PARI) a(n) = polcoeff((1 + 2*x*Ser(qfrep([2, 1; 1, 8], n, 1)))^3, n); \\ Jinyuan Wang, Feb 20 2020

CROSSREFS

Cf. A028626, A028628.

Sequence in context: A236930 A028643 A236923 * A162522 A292680 A028320

Adjacent sequences:  A028624 A028625 A028626 * A028628 A028629 A028630

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Jinyuan Wang, Feb 20 2020

STATUS

approved

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Last modified December 6 04:52 EST 2021. Contains 349562 sequences. (Running on oeis4.)