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A168526
a(n) = n^6*(n + 1)/2.
1
0, 1, 96, 1458, 10240, 46875, 163296, 470596, 1179648, 2657205, 5500000, 10629366, 19408896, 33787663, 56471520, 91125000, 142606336, 217238121, 323116128, 470458810, 672000000, 943427331, 1303868896, 1776430668, 2388787200, 3173828125, 4170362976
OFFSET
0,3
LINKS
FORMULA
From R. J. Mathar, Dec 16 2009: (Start)
a(n) = 8*a(n-1) -28*a(n-2) +56*a(n-3) -70*a(n-4) +56*a(n-5) -28*a(n-6) +8*a(n-7) -a(n-8).
G.f.: x*(1 + 88*x + 718*x^2 + 1208*x^3 + 473*x^4 + 32*x^5)/(x-1)^8. (End)
MATHEMATICA
Table[n^6*(n + 1)/2, {n, 0, 25}] (* G. C. Greubel, Jul 25 2016 *)
PROG
(Magma) [n^6*(n+1)/2: n in [0..30]]; // Vincenzo Librandi, Jul 25 2016
CROSSREFS
Cf. A168029.
Sequence in context: A282017 A263567 A223292 * A128962 A071765 A064243
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Dec 11 2009
STATUS
approved