OFFSET
0,6
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,1,-1,1,0,0,0,1,-1).
MATHEMATICA
CoefficientList[Series[1/(1 - x - x^5 + x^6 - x^7 - x^11 + x^12), {x, 0, 50}], x]
LinearRecurrence[{1, 0, 0, 0, 1, -1, 1, 0, 0, 0, 1, -1}, {1, 1, 1, 1, 1, 2, 2, 3, 4, 5, 7, 9}, 100] (* G. C. Greubel, Nov 16 2016 *)
PROG
(PARI) Vec(1/(1-x -x^5 +x^6 -x^7 -x^11 +x^12) + O(x^50)) \\ G. C. Greubel, Nov 16 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Roger L. Bagula, May 09 2013
STATUS
approved