OFFSET
0,1
LINKS
Roman Witula, Damian Slota and Adam Warzynski, Quasi-Fibonacci Numbers of the Seventh Order, J. Integer Seq., 9 (2006), Article 06.4.3, page 24.
Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1).
FORMULA
O.g.f.: (11 - 25*x + 27*x^2 - 7*x^3)/(1 - x)^4.
E.g.f.: (11 + 8*x + 5*x^2 + x^3)*exp(x).
a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4) for n>3.
MATHEMATICA
Table[n^3 + 2 n^2 + 5 n + 11, {n, 0, 50}]
PROG
(Magma) [n^3+2*n^2+5*n+11: n in [0..50]];
(PARI) vector(50, n, n--; n^3+2*n^2+5*n+11) \\ Altug Alkan, Apr 14 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Apr 14 2016
STATUS
approved