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Search: id:A017909
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| A017909 |
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Expansion of 1/(1 - x^15 - x^16 - ...). |
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+0
2
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| 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 21, 25, 30, 36, 43, 51, 60, 70, 81, 93, 106, 120, 135, 151, 169, 190, 215, 245, 281
(list; graph; listen)
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OFFSET
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0,31
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FORMULA
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G.f.: (x-1)/(x-1+x^15). [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 04 2008]
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MAPLE
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(Maple) a := n -> (Matrix(15, (i, j)-> if (i=j-1) then 1 elif j=1 then [1, 0$13, 1][i] else 0 fi)^n)[15, 15] ; seq (a(n), n=0..64); [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 04 2008]
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CROSSREFS
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Sequence in context: A122937 A060340 A078510 this_sequence A124695 A005555 A128829
Adjacent sequences: A017906 A017907 A017908 this_sequence A017910 A017911 A017912
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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