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Search: id:A112504
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| 1, 35, 665, 9107, 100751, 957197, 8110087, 62854845, 453710670, 3091406010, 20086835910, 125465290530, 758173316850, 4455503465430, 25571494599330, 143839855533270, 795332428661055, 4333564250230845, 23317657891319095
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OFFSET
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0,2
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COMMENT
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For a combinatorial formula see A112500, case k=5.
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FORMULA
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G.f.: 1/product((1-j*x)^(6-j), j=1..5) = 1/(((1-x)^5)*((1-2*x)^4)*((1-3*x)^3)*((1-4*x)^2)*(1-5*x)).
a(n) computable from partial fraction decomposition of g.f. Cf. A112503.
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CROSSREFS
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Sequence in context: A033281 A126925 A010987 this_sequence A140405 A139641 A028220
Adjacent sequences: A112501 A112502 A112503 this_sequence A112505 A112506 A112507
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KEYWORD
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nonn,easy
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AUTHOR
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Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Oct 14 2005
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