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A049377 Row sums of triangle A049352. +0
3
1, 5, 33, 273, 2721, 31701, 421905, 6302913, 104270913, 1889862021, 37204038081, 789866524305, 17977594555233, 436435929785493, 11251798888929201, 306889765901872641, 8825681949708120705, 266828094135981378693 (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*(3-3*x+x^2)/(3*(1-x)^3) (E.g.f. first column of A049352).

CROSSREFS

Sequence in context: A111530 A087633 A135075 this_sequence A129890 A120733 A001828

Adjacent sequences: A049374 A049375 A049376 this_sequence A049378 A049379 A049380

KEYWORD

nonn

AUTHOR

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

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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