OFFSET
0,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..5000
Index entries for linear recurrences with constant coefficients, signature (3,-3,1).
FORMULA
a(n) = 29*n + a(n-1) - 15 for n>0, a(0)=0. - Vincenzo Librandi, Aug 04 2010
G.f.: x*(14 + 15*x)/(1 - x)^3. - R. J. Mathar, Aug 04 2016
E.g.f.: (x/2)*(29*x + 28)*exp(x). - G. C. Greubel, Aug 24 2017
MATHEMATICA
Table[n (29 n - 1)/2, {n, 0, 40}] (* Bruno Berselli, Oct 14 2016 *)
PROG
(PARI) a(n)=n*(29*n-1)/2 \\ Charles R Greathouse IV, Jun 17 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved