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Search: id:A141309
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A141309 INVERTi transform of A141308. +0
1
2, 3, 16, 158, 1796, 24250, 372656, 6429927, 122956714, 2581840735, 59084565968, 1464445686726, 39101805324620, 1119446453417490, 34220008384633264, 1112764183812405300, 38362648544330997488, 1397884269388233025156 (list; graph; listen)
OFFSET

1,1

COMMENT

Number of generators of degree n of the (free) primitive Lie algebra of the Hopf algebra of free quasi-symmetric functions of level 2.

LINKS

J.-C. Novelli and J.-Y. Thibon, Free quasi-symmetric functions and descent algebras for wreath products and noncommutative multi-symmetric functions

MAPLE

INVERTi([seq(d(n, n=1..20)]); where d(n) is A141308

CROSSREFS

Cf. A003319, A141307, A141308.

Sequence in context: A063666 A006247 A052318 this_sequence A057997 A005273 A103898

Adjacent sequences: A141306 A141307 A141308 this_sequence A141310 A141311 A141312

KEYWORD

nonn

AUTHOR

Jean-Yves Thibon (jyt(AT)univ-mlv.fr), Jun 26 2008

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Last modified December 2 15:28 EST 2008. Contains 150991 sequences.


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