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A049376 Row sums of triangle A046089. +0
2
1, 4, 22, 154, 1306, 12976, 147484, 1883932, 26680924, 414468496, 7001104936, 127677078904, 2498712779512, 52209534323584, 1159559538626896, 27269218041047056, 676732851527182864, 17669429275516846912 (list; graph; listen)
OFFSET

1,2

LINKS

W. Lang, On generalizations of Stirling number triangles, J. Integer Seqs., Vol. 3 (2000), #00.2.4.

FORMULA

E.g.f. exp(p(x))-1 with p(x) := x*(2-x)/(2*(1-x)^2) (E.g.f. first column of A046089).

Lah transform of A000085: Sum_{k=0..n} n!/k!*binomial(n-1, k-1)*A000085(k). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Oct 02 2003

CROSSREFS

Sequence in context: A039304 A062817 A000307 this_sequence A083410 A052772 A052650

Adjacent sequences: A049373 A049374 A049375 this_sequence A049377 A049378 A049379

KEYWORD

nonn

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de)

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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