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Search: id:A131222
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| A131222 |
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Exponential Riordan array [1, log((1-x)/(1-2x)]. |
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+0
2
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| 1, 0, 1, 0, 3, 1, 0, 14, 9, 1, 0, 90, 83, 18, 1, 0, 744, 870, 275, 30, 1, 0, 7560, 10474, 4275, 685, 45, 1, 0, 91440, 143892, 70924, 14805, 1435, 63, 1, 0, 1285200, 2233356, 1274196, 324289, 41160
(list; table; graph; listen)
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OFFSET
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0,5
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COMMENT
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Row sums are A002866. Second column is A029767.
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EXAMPLE
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Number triangle starts
1,
0, 1,
0, 3, 1,
0, 14, 9, 1,
0, 90, 83, 18, 1,
0, 744, 870, 275, 30, 1
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CROSSREFS
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Adjacent sequences: A131219 A131220 A131221 this_sequence A131223 A131224 A131225
Sequence in context: A143398 A067176 A137431 this_sequence A114151 A110518 A006837
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KEYWORD
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easy,nonn,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Jun 18 2007
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