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Search: id:A111555
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| 1, 3, 16, 116, 1016, 10176, 113216, 1375456, 18047296, 253815936, 3805221376, 60558070016, 1019617312256, 18111737604096, 338602832961536, 6648048064792576, 136810876329865216, 2945671077411987456
(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)=if(n<0, 0, (matrix(n+3, n+3, m, j, if(m==j, 1, if(m==j+1, -m+1, -(m-j-1)*polcoeff(log(sum(i=0, m, (i+3)!/3!*x^i)), m-j-1))))^-1)[n+3, 3])}
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CROSSREFS
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Cf. A111553, A111531.
Sequence in context: A036244 A011818 A036248 this_sequence A074522 A125807 A125222
Adjacent sequences: A111552 A111553 A111554 this_sequence A111556 A111557 A111558
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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), Aug 07 2005
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