OFFSET
1,5
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..5000
FORMULA
From Chai Wah Wu, Jun 10 2020: (Start)
a(n) = a(n-1) + a(n-16) - a(n-17) for n > 17.
G.f.: x*(x^14 + x^12 + x^11 + x^9 + x^6 + x^4 + x)/(x^17 - x^16 - x + 1). (End)
MATHEMATICA
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Aug 20 2011
STATUS
approved