OFFSET
0,2
LINKS
Kelvin Voskuijl, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).
FORMULA
a(n) = A183065(n+1,1).
From Stefano Spezia, Mar 10 2026: (Start)
a(n) = n^4 + 6*n^3 + 11*n^2 + 7*n + 1.
E.g.f.: exp(x)*(1 + 25*x + 36*x^2 + 12*x^3 + x^4). (End)
MATHEMATICA
a[n_]:=1+7n+11n^2+6n^3+n^4; Array[a, 36, 0] (* Stefano Spezia, Mar 10 2026 *)
PROG
(PARI) {a(n)=polcoeff((1+21*x+3*x^2-x^3)/(1-x+x*O(x^n))^5, n)}
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul D. Hanna, Dec 22 2010
STATUS
approved