OFFSET
0,2
LINKS
Colin Barker, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1).
FORMULA
MATHEMATICA
Table[n (n + 1) (16 n - 1)/6, {n, 0, 50}]
PROG
(Magma) [n*(n+1)*(16*n-1)/6: n in [0..41]]; // Vincenzo Librandi, May 23 2018
(PARI) concat(0, Vec(x*(5 + 11*x) / (1 - x)^4 + O(x^40))) \\ Colin Barker, May 25 2018
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Bruno Berselli, May 22 2018
STATUS
approved