OFFSET
0,3
FORMULA
From Chai Wah Wu, Jun 21 2016: (Start)
a(n) = a(n-1) - a(n-29) + a(n-30) for n > 30.
G.f.: x^2*(-2*x^28 - x^26 - 6*x^25 + 4*x^24 + 2*x^22 + 2*x^21 - 7*x^20 + 6*x^18 - 5*x^17 + 4*x^16 + x^15 - 2*x^14 - x^13 + 3*x^12 - 3*x^11 + 4*x^10 - 8*x^9 + 5*x^8 - 5*x^7 + 3*x^6 + 5*x^5 + x^4 - x^3 - 5*x^2 - 3)/(x^30 - x^29 + x - 1). (End)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
STATUS
approved