OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
Piezas, Tito III and Weisstein, Eric W., Pentanacci Number.
Index entries for linear recurrences with constant coefficients, signature (1,1,1,1,1).
FORMULA
G.f.: x*(x-1)*(2*x^2+2*x+1)/(-1+x^5+x^4+x^3+x^2+x). - Maksym Voznyy (voznyy(AT)mail.ru), Aug 12 2009
MATHEMATICA
a[n_] := a[n] = a[n - 1] + a[n - 2] + a[n - 3] + a[n - 4] + a[n - 5]; a[0] = 0; a[1] = 1; a[2] = 2; a[3] = 3; a[4] = 4; Table[a[n], {n, 0, 50}] (* Artur Jasinski, Nov 18 2007 *)
LinearRecurrence[{1, 1, 1, 1, 1}, Range[0, 4], 40] (* Harvey P. Dale, Oct 18 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Nov 15 2007, Nov 18 2007
STATUS
approved