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Search: id:A099569
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| A099569 |
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Riordan array ((1+x)^2-x^3)/(1+x)^3, 1/(1+x)). |
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+0
3
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| 1, -1, 1, 1, -2, 1, -2, 3, -3, 1, 4, -5, 6, -4, 1, -7, 9, -11, 10, -5, 1, 11, -16, 20, -21, 15, -6, 1, -16, 27, -36, 41, -36, 21, -7, 1, 22, -43, 63, -77, 77, -57, 28, -8, 1, -29, 65, -106, 140, -154, 134, -85, 36, -9, 1, 37, -94, 171, -246, 294, -288, 219, -121, 45, -10, 1, -46, 131, -265, 417, -540, 582, -507, 340, -166, 55
(list; table; graph; listen)
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OFFSET
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0,5
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COMMENT
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Inverse matrix of A099567. Row sums are A099570.
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FORMULA
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Columns have g.f. ((1+x)^2-x^3)/(1+x)^3(x/(1+x))^k.
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EXAMPLE
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Rows begin {1}, {-1,1}, {1,-2,1}, {-2,3,-3,1}, {4,-5,6,-4,1},...
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CROSSREFS
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Adjacent sequences: A099566 A099567 A099568 this_sequence A099570 A099571 A099572
Sequence in context: A099567 A140530 A052250 this_sequence A097724 A091836 A080850
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KEYWORD
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easy,sign,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Oct 22 2004
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