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Search: id:A081281
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| A081281 |
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Square array of binomial transforms of Chebyshev polynomial coefficients. |
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+0
2
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| 1, 1, 2, 1, 4, 5, 1, 6, 15, 14, 1, 8, 29, 54, 41, 1, 10, 47, 126, 189, 122, 1, 12, 69, 238, 513, 648, 365, 1, 14, 95, 398, 1101, 1998, 2187, 1094, 1, 16, 125, 614, 2057, 4788, 7533, 7290, 3281, 1, 18, 159, 894, 3501, 9858, 19899, 27702, 24057, 9842, 1, 20, 197, 1246
(list; table; graph; listen)
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OFFSET
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0,3
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COMMENT
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Square array of binomial transforms of rows of A081277. Rows include A007051, A006234, A081278, A081279, A081280.
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FORMULA
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Rows have g.f. (1-2x)(1-x)^(n-1)/(1-3x)^(n+1).
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EXAMPLE
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Read by antidiagonals, the array appears as {1}, {1,2},{1,4,5}, {1,6,15,14}, {1,8,29,54,41},...
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CROSSREFS
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Sequence in context: A038730 A050166 A124959 this_sequence A108198 A121289 A134248
Adjacent sequences: A081278 A081279 A081280 this_sequence A081282 A081283 A081284
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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), Mar 16 2003
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