OFFSET
0,4
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
C. P. Neuman and D. I. Schonbach, Evaluation of sums of convolved powers using Bernoulli numbers, SIAM Rev. 19 (1977), no. 1, 90--99. MR0428678 (55 #1698). See Table 3.
Index entries for linear recurrences with constant coefficients, signature (8,-28,56,-70,56,-28,8,-1).
FORMULA
G.f.: 8*x^3*(1 + x + x^2)/(1 - x)^8. - Ilya Gutkovskiy, Feb 24 2017
MATHEMATICA
Table[(n^7 - 21 n^3 + 20 n)/210, {n, 0, 50}] (* Vincenzo Librandi, Mar 24 2014 *)
LinearRecurrence[{8, -28, 56, -70, 56, -28, 8, -1}, {0, 0, 0, 8, 72, 360, 1312, 3888}, 50] (* Harvey P. Dale, Apr 26 2018 *)
PROG
(Magma) [(n^7-21*n^3+20*n)/210: n in [0..40]]; // Vincenzo Librandi, Mar 24 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Mar 23 2014
STATUS
approved