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A049425 Row sums of triangle A049404. +0
2
1, 1, 3, 9, 33, 141, 651, 3333, 18369, 108153, 678771, 4495041, 31324833, 228803589, 1744475643, 13852095741, 114235118721, 976176336753, 8627940414819, 78726234866553, 740440277799201, 7168107030092541 (list; graph; listen)
OFFSET

0,3

LINKS

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

FORMULA

E.g.f. exp(x+x^2+(x^3)/3).

CROSSREFS

Sequence in context: A098742 A009212 A001930 this_sequence A012584 A101899 A009220

Adjacent sequences: A049422 A049423 A049424 this_sequence A049426 A049427 A049428

KEYWORD

easy,nonn

AUTHOR

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

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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