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A032176 Functions of n points with no symmetries. 0


%S 1,1,3,6,15,34,82,193,464,1111,2683,6482,15730,38232,93177,227458,

%T 556323,1362639,3342504,8209130,20185204,49684404,122413446,301870406,

%U 745019874,1840103575,4548008306,11248190948

%N Functions of n points with no symmetries.

%D F. Bergeron, G. Labelle and P. Leroux, Combinatorial Species and Tree-Like Structures, Camb. 1998, p. 328. (4.4.31).

%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>

%H N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>

%F WEIGH transform of A032175. Also g.f. = (1-B(x^2))/(1-B(x)), B(x)=g.f. of A004111.

%Y Cf. A001372.

%K nonn

%O 1,3

%A _Christian G. Bower_

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Last modified April 23 07:51 EDT 2019. Contains 322381 sequences. (Running on oeis4.)