OFFSET
0,2
REFERENCES
C. Alsina and R. B. Nelson, Charming Proofs: A Journey into Elegant Mathematics, MAA, 2010. See p. 4.
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).
FORMULA
From G. C. Greubel, Jun 22 2017: (Start)
a(n) = 2*n*(n + 1)*(2*n + 1)^2.
G.f.: 12*x*(3 + 10*x + 3*x^2)/(1 - x)^5.
E.g.f.: 2*x*(18 + 57*x + 32*x^2 + 4*x^3)*exp(x). (End)
MATHEMATICA
Table[2*n*(n + 1)*(2*n + 1)^2, {n, 0, 50}] (* G. C. Greubel, Jun 22 2017 *)
PROG
(PARI) for(n=0, 50, print1(2*n*(n+1)*(2*n+1)^2, ", ")) \\ G. C. Greubel, Jun 22 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Feb 18 2011
STATUS
approved