A025813 Expansion of 1/((1-x^2)(1-x^6)(1-x^7)).

1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1, 3, 2, 4, 2, 4, 2, 5, 3, 6, 4, 6, 4, 7, 5, 8, 6, 9, 6, 10, 7, 11, 8, 12, 9, 13, 10, 14, 11, 15, 12, 17, 13, 18, 14, 19, 15, 21, 17, 22, 18, 23, 19, 25, 21, 27, 22, 28, 23, 30, 25, 32, 27, 33

Offset

0,7

Links

Table of n, a(n) for n=0..64.

Index entries for linear recurrences with constant coefficients, signature (0,1,0,0,0,1,1,-1,-1,0,0,0,-1,0,1).

Mathematica

CoefficientList[Series[1/((1-x^2)(1-x^6)(1-x^7)), {x, 0, 70}], x] (* or *) LinearRecurrence[{0, 1, 0, 0, 0, 1, 1, -1, -1, 0, 0, 0, -1, 0, 1}, {1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1, 3, 2, 4}, 70] (* Harvey P. Dale, Nov 06 2017 *)

Crossrefs

Sequence in context: A029414 A053275 A025816 * A161231 A161055 A161259

Adjacent sequences: A025810 A025811 A025812 * A025814 A025815 A025816

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved