OFFSET
0,7
LINKS
Index entries for linear recurrences with constant coefficients, signature (1, 0, 0, 0, 0, 1, -1, 1, 0, -1, 0, 0, 0, -1, 0, 1, -1, 1, 0, 0, 0, 0, 1, -1).
FORMULA
a(0)=1, a(1)=1, a(2)=1, a(3)=1, a(4)=1, a(5)=1, a(6)=2, a(7)=2, a(8)=3, a(9)=4, a(10)=4, a(11)=4, a(12)=5, a(13)=5, a(14)=6, a(15)=7, a(16)=8, a(17)=9, a(18)=11, a(19)=11, a(20)=12, a(21)=13, a(22)=14, a(23)=15, a(n)=a(n-1)+a(n-6)-a(n-7)+a(n-8)-a(n-10)-a(n-14)+a(n-16)- a(n-17)+ a(n-18)+ a(n-23)-a (n-24). - Harvey P. Dale, Jan 02 2016
MATHEMATICA
CoefficientList[Series[1/((1-x)(1-x^6)(1-x^8)(1-x^9)), {x, 0, 60}], x] (* or *) LinearRecurrence[{1, 0, 0, 0, 0, 1, -1, 1, 0, -1, 0, 0, 0, -1, 0, 1, -1, 1, 0, 0, 0, 0, 1, -1}, {1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 4, 4, 5, 5, 6, 7, 8, 9, 11, 11, 12, 13, 14, 15}, 60] (* Harvey P. Dale, Jan 02 2016 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved