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Search: id:A159971
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| A159971 |
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Riordan array (2c(-x)-1, xc(-x)^3), c(x) the g.f. of A000108. |
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+0
2
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| 1, -2, 1, 4, -5, 1, -10, 19, -8, 1, 28, -68, 43, -11, 1, -84, 240, -198, 76, -14, 1, 264, -847, 845, -427, 118, -17, 1, -858, 3003, -3458, 2140, -782, 169, -20, 1, 2860, -10712, 13804, -9996, 4503, -1290, 229, -23, 1, -9724, 38454, -54264, 44574
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Inverse of A159965. Row sums are A159972.
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EXAMPLE
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Triangle begins
1,
-2, 1,
4, -5, 1,
-10, 19, -8, 1,
28, -68, 43, -11, 1,
-84, 240, -198, 76, -14, 1,
264, -847, 845, -427, 118, -17, 1,
-858, 3003, -3458, 2140, -782, 169, -20, 1
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CROSSREFS
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Sequence in context: A143494 A124960 A137346 this_sequence A114158 A162407 A132741
Adjacent sequences: A159968 A159969 A159970 this_sequence A159972 A159973 A159974
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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), Apr 28 2009
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