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Search: id:A088327
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A088327 G.f.: exp(sum_{k=1..infinity) B(x^k)/k ), where B(x) = x + 2*x^2 + 5*x^3 + 14*x^4 + 42*x^5 + ... = (C(x)-1)/x and C is the g.f. for the Catalan numbers A000108. +0
1
1, 1, 3, 8, 25, 77, 256, 854, 2940, 10229, 36124, 128745, 463137, 1677816, 6118165, 22432778, 82660369, 305916561, 1136621136, 4238006039, 15852603939, 59471304434, 223704813807, 843547443903, 3188064830876, 12074092672950, 45816941923597, 174173975322767 (list; graph; listen)
OFFSET

0,3

FORMULA

Euler transform of Catalan numbers (A000108). - Frank Adams-Watters (FrankTAW(AT)Netscape.net), Mar 01 2006

CROSSREFS

Sequence in context: A093969 A006177 A022553 this_sequence A007563 A050383 A060404

Adjacent sequences: A088324 A088325 A088326 this_sequence A088328 A088329 A088330

KEYWORD

nonn

AUTHOR

njas, Nov 06 2003

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


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