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Search: id:A051879
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| 1, 14, 69, 224, 574, 1260, 2478, 4488, 7623, 12298, 19019, 28392, 41132, 58072, 80172, 108528, 144381, 189126, 244321, 311696, 393162, 490820, 606970, 744120, 904995, 1092546, 1309959, 1560664
(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)*(9n+5)/5.
G.f.: (1+8*x)/(1-x)^6.
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CROSSREFS
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Cf. A051798.
Cf. A093644((9, 1) Pascal, column m=5).
Cf. A050405.
Sequence in context: A075480 A008354 A116671 this_sequence A002423 A034554 A034562
Adjacent sequences: A051876 A051877 A051878 this_sequence A051880 A051881 A051882
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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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