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Search: id:A126464
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| 1, 2, 3, 8, 50, 635, 13389, 420865, 18491156, 1084804118, 82081329459, 7794746829520, 908790397019076, 127745867968533747, 21322592031518420776, 4171751138526111626665, 946103460280012610769060
(list; graph; listen)
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OFFSET
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0,2
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PROGRAM
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(PARI) {a(n)=sum(k=0, n, abs((matrix(n+1, n+1, r, c, binomial((c-1)*c*(c+1)/3!-k*(k+1)*(k+2)/3!+r-c, r-c))^-1)[n+1, k+1]))}
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CROSSREFS
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Cf. A126460; A126461, A126462, A126463.
Sequence in context: A141319 A001289 A103045 this_sequence A041979 A001686 A013205
Adjacent sequences: A126461 A126462 A126463 this_sequence A126465 A126466 A126467
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Dec 27 2006
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