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Search: id:A113141
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| A113141 |
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Inverse of a Delannoy related triangle. |
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+0
3
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| 1, -3, 1, 2, -5, 1, -2, 10, -7, 1, 2, -14, 22, -9, 1, -2, 18, -46, 38, -11, 1, 2, -22, 78, -106, 58, -13, 1, -2, 26, -118, 230, -202, 82, -15, 1, 2, -30, 166, -426, 538, -342, 110, -17, 1, -2, 34, -222, 710, -1194, 1082, -534, 142, -19, 1, 2, -38, 286, -1098, 2330, -2814, 1958, -786, 178, -21, 1
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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First column is (-1)^n*A104435(n). Row sums are 1,-2,-2,2,2,-2,-2,... Second column is A113142. Inverse of A113139.
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EXAMPLE
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Triangle begins
1;
-3, 1;
2, -5, 1;
-2, 10, -7, 1;
2, -14, 22, -9, 1;
-2, 18, -46, 38, -11, 1;
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CROSSREFS
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Sequence in context: A080521 A125704 A131127 this_sequence A134225 A136081 A083106
Adjacent sequences: A113138 A113139 A113140 this_sequence A113142 A113143 A113144
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KEYWORD
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sign,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Oct 15 2005
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