OFFSET
0,2
LINKS
S. Butler, P. Karasik, A note on nested sums, J. Int. Seq. 13 (2010), 10.4.4, p=2 in the first displayed equation on page 4.
Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).
MATHEMATICA
Table[n(2n+1) Binomial[n+2, n]/3, {n, 0, 40}] (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {0, 3, 20, 70, 180}, 40] (* Harvey P. Dale, May 18 2019 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Jul 09 2017
STATUS
approved