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Search: id:A052255
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| 1, 13, 81, 345, 1155, 3267, 8151, 18447, 38610, 75790, 140998, 250614, 428298, 707370, 1133730, 1769394, 2696727, 4023459, 5888575, 8469175, 11988405, 16724565, 23021505, 31300425
(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.
Murray R.Spiegel,Calculus of Finite Differences and Difference Equations,"Schaum's Outline Series",McGraw-Hill,1971, pp. 10-20,79-94.
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FORMULA
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a(n)=(5n+8)*C(n+7, 7)/8
G.f.: (1+4*x)/(1-x)^9.
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CROSSREFS
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Cf. A050484.
Cf. A093562 ((5, 1) Pascal, column m=8).
Sequence in context: A071614 A045552 A133718 this_sequence A082203 A101102 A142085
Adjacent sequences: A052252 A052253 A052254 this_sequence A052256 A052257 A052258
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KEYWORD
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easy,nonn
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AUTHOR
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Barry E. Williams, Feb 02 2000
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