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Search: id:A051878
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| 1, 13, 63, 203, 518, 1134, 2226, 4026, 6831, 11011, 17017, 25389, 36764, 51884, 71604, 96900, 128877, 168777, 217987, 278047, 350658, 437690, 541190, 663390, 806715, 973791, 1167453, 1390753
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 194-196.
Herbert John Ryser, Combinatorial Mathematics, "The Carus Mathematical Monographs", No. 14, John Wiley and Sons, 1963, pp. 1-16.
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FORMULA
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a(n)=C(n+4, 4)*(8n+5)/5.
G.f.: (1+7*x)/(1-x)^6.
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CROSSREFS
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Cf. A051797.
Cf. A093565 ((8, 1) Pascal, column m=5).
Sequence in context: A044151 A044532 A031074 this_sequence A092653 A067465 A054477
Adjacent sequences: A051875 A051876 A051877 this_sequence A051879 A051880 A051881
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KEYWORD
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easy,nonn
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AUTHOR
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Barry E. Williams, Dec 14 1999
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