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Search: id:A032347
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| 1, 0, 1, 2, 6, 21, 82, 354, 1671, 8536, 46814, 273907, 1700828, 11158746, 77057021, 558234902, 4230337018, 33448622893, 275322101318, 2354401779494, 20878592918183, 191682453823420, 1819147694792802
(list; graph; listen)
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OFFSET
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0,4
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LINKS
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N. J. A. Sloane, Transforms
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FORMULA
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E.g.f. satisfies A' = exp(x) A - 1.
Recurrence : a(1)=0, a(2)=1, for n>2, a(n)=1+sum(j=2, n-1, binomial(n-1, j)*a(j)) - Jon Perry (perry(AT)globalnet.co.uk), Apr 26 2005
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CROSSREFS
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Cf. A032346, A046934.
Sequence in context: A150218 A150219 A150220 this_sequence A032346 A148495 A150221
Adjacent sequences: A032344 A032345 A032346 this_sequence A032348 A032349 A032350
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KEYWORD
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nonn,nice,easy,eigen
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AUTHOR
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Joe K. Crump (joecr(AT)carolina.rr.com)
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