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Search: id:A050484
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| 1, 12, 68, 264, 810, 2112, 4884, 10296, 20163, 37180, 65208, 109616, 177684, 279072, 426360, 635664, 927333, 1326732, 1865116, 2580600, 3519230, 4736160, 6296940, 8278920, 10772775, 13884156, 17735472, 22467808, 28242984, 35245760
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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.
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FORMULA
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a(n)=C(n+6, 6)*(5n+7)/7.
G.f.: (1+4*x)/(1-x)^8.
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CROSSREFS
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Cf. A051946.
Cf. A093562 ((5, 1) Pascal, column m=7).
Adjacent sequences: A050481 A050482 A050483 this_sequence A050485 A050486 A050487
Sequence in context: A091074 A117088 A059585 this_sequence A096425 A101097 A067702
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KEYWORD
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easy,nonn
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AUTHOR
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Barry E. Williams, Dec 26 1999
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EXTENSIONS
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More terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Jun 17 2001
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