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Search: id:A140953
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| A140953 |
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Expansion of 1/((1-x^2)*(1-x^3)*(1-x^5)*(1-x^7)*(1-x^11)*(1-x^13)). |
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+0
1
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| 1, 0, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 9, 10, 12, 14, 16, 19, 21, 25, 28, 32, 36, 41, 46, 52, 58, 65, 72, 80, 89, 98, 109, 119, 132, 144, 158, 173, 189, 206, 224, 244, 264, 287, 310, 336, 362, 391, 421, 453
(list; graph; listen)
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OFFSET
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0,6
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MAPLE
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M := Matrix(41, (i, j)-> if (i=j-1) or (j=1 and member(i, [2, 3, 11, 19, 20, 21, 22, 30, 38, 39])) then 1 elif j=1 and member(i, [8, 9, 16, 17, 24, 25, 32, 33, 41]) then -1 else 0 fi); a := n -> (M^(n))[1, 1]; seq (a(n), n=0..50);
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CROSSREFS
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Adjacent sequences: A140950 A140951 A140952 this_sequence A140954 A140955 A140956
Sequence in context: A145816 A027583 A029022 this_sequence A112021 A000607 A114372
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KEYWORD
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nonn
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AUTHOR
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Alois P. Heinz (heinz(AT)hs-heilbronn.de), Jul 25 2008
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