A028612 Expansion of (theta_3(z)*theta_3(11z) + theta_2(z)*theta_2(11z))^4.

1, 8, 24, 48, 120, 256, 416, 736, 1112, 1624, 2384, 2792, 3904, 4560, 6080, 6352, 9176, 9296, 13688, 13728, 18352, 19168, 25656, 23632, 32992, 31400, 38800, 39664, 49024, 48400, 61632, 58512, 73368, 80112, 86832, 84768, 108472, 99808, 122784, 122240, 143504, 137200

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, 6], n, 1)))^4, n); \\ Jinyuan Wang, Feb 20 2020

Crossrefs

Cf. A028609, A028610, A028611.

Sequence in context: A146980 A342062 A319576 * A333173 A358036 A068857

Adjacent sequences: A028609 A028610 A028611 * A028613 A028614 A028615

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Jinyuan Wang, Feb 20 2020

Status

approved