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Search: id:A103353
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| 1, 2, 20, 512, 25392, 2093472, 260555392, 45819233280, 10849051434240, 3334632688448000, 1292876470540099584, 617862114722159788032, 357118557050589336432640, 245715466325821945360588800
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OFFSET
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1,2
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FORMULA
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For n>1: 0 = Sum_{k=1..n} C(n-1, k-1)*(-k^2-k)^(n-k)*a(k).
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PROGRAM
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(PARI) {a(n)=local(P); if(n>=1, P=matrix(n, n, r, c, if(r>=c, (-c^2-c)^(r-c)/(r-c)!))); return(if(n<1, 0, (P^-1)[n, 1]*(n-1)!))}
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CROSSREFS
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Cf. A103244.
Sequence in context: A009252 A012816 A012340 this_sequence A009344 A009699 A101927
Adjacent sequences: A103350 A103351 A103352 this_sequence A103354 A103355 A103356
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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), Feb 02 2005
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