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1, 14, 77, 280, 798, 1932, 4158, 8184, 15015, 26026, 43043, 68432, 105196, 157080, 228684, 325584, 454461, 623238, 841225, 1119272, 1469930, 1907620, 2448810, 3112200, 3918915, 4892706, 6060159, 7450912
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 194-196.
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FORMULA
| a(n)=C(n+5, 5)*(4n+3)/3.
G.f.: (1+7*x)/(1-x)^7.
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MATHEMATICA
| s=c=z=0; Table[z+=c+=s+=n(n+1)(8n-5)/6, {n, 80}] (* From Vladimir Joseph Stephan Orlovsky, Apr 19 2011 *)
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CROSSREFS
| Cf. A051878.
Cf. A093565 ((8, 1) Pascal, column m=6).
Sequence in context: A010821 A022706 A085462 * A044201 A044582 A058895
Adjacent sequences: A050401 A050402 A050403 * A050405 A050406 A050407
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KEYWORD
| easy,nonn
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AUTHOR
| Barry E. Williams, Dec 21 1999
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EXTENSIONS
| Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 09 2006
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