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Search: id:A111545
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| 1, 2, 9, 57, 441, 3933, 39249, 430677, 5137641, 66103533, 911973249, 13428837477, 210259505241, 3489291147933, 61200522593649, 1131630622515477, 22007781151434441, 449197758198576333, 9603342828706622049
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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+2, n+2, m, j, if(m==j, 1, if(m==j+1, -m+1, -(m-j-1)*polcoeff(log(sum(i=0, m, (i+2)!/2!*x^i)), m-j-1))))^-1)[n+2, 2])}
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CROSSREFS
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Cf. A111544.
Sequence in context: A036243 A033917 A004103 this_sequence A070075 A124405 A141787
Adjacent sequences: A111542 A111543 A111544 this_sequence A111546 A111547 A111548
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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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