

A032274


Number of labeled seriesreduced dyslexic mobiles (polygon rooted trees) with n leaves (root has degree 0 or >=2).


1



1, 1, 4, 28, 277, 3532, 55093, 1016011, 21624349, 521677954, 14067076336, 419272679677, 13687252717378, 485693076265273, 18614089207916707, 766238746685395879, 33717600627620246296, 1579453179468556700596, 78472105193521600210579, 4121555441689179298651888
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OFFSET

1,3


LINKS



FORMULA

Doubles (index 2+) under "DIJ" (bracelet, indistinct, labeled) transform.
E.g.f.: series reversion of (3*x  x^2/2 + log(1x))/2.  Andrew Howroyd, Sep 19 2018


PROG

(PARI) Vec(serlaplace(serreverse((3*x  x^2/2 + log(1x + O(x^20)))/2))) \\ Andrew Howroyd, Sep 19 2018


CROSSREFS



KEYWORD

nonn,eigen


AUTHOR



EXTENSIONS



STATUS

approved



