A266749 G.f.: 1/((1-t^9)^2*(1-t)*(1-t^3)*(1-t^5)*(1-t^7)*(1-t^11)*(1-t^13)*(1-t^15)*(1-t^17)).

1, 1, 1, 2, 2, 3, 4, 5, 6, 9, 11, 13, 17, 20, 25, 31, 37, 44, 55, 64, 76, 91, 106, 125, 147, 171, 198, 233, 267, 308, 356, 407, 466, 534, 607, 690, 787, 888, 1004, 1135, 1277, 1435, 1614, 1806, 2021, 2263, 2520, 2807, 3126, 3470, 3849, 4269, 4720, 5217, 5765, 6352, 6995, 7701, 8459, 9286, 10190, 11159, 12214, 13363, 14592, 15926, 17374

Offset

0,4

Links

Table of n, a(n) for n=0..66.

Mathematica

CoefficientList[Series[1/((1-t^9)^2(1-t)(1-t^3)(1-t^5)(1-t^7)(1-t^11)(1-t^13)(1-t^15)(1-t^17)), {t, 0, 70}], t] (* Harvey P. Dale, Jan 04 2023 *)

Crossrefs

Sequence in context: A281356 A026796 A008925 * A308283 A336133 A238625

Adjacent sequences: A266746 A266747 A266748 * A266750 A266751 A266752

Keyword

nonn

Author

N. J. A. Sloane, Jan 10 2016

Status

approved