VOOZH about

URL: https://oeis.org/A032270

⇱ A032270 - OEIS

login
A032270
"DIJ" (bracelet, indistinct, labeled) transform of 1,3,5,7,...
2
1, 1, 4, 15, 75, 481, 4155, 47021, 647759, 10328977, 185812755, 3715936789, 81749718039, 1961990821913, 51011755028507, 1428329124503581, 42849873694048287, 1371195958107799585, 46620662575416672291, 1678343852714400808997, 63777066403145801007143
OFFSET
0,3
LINKS
C. G. Bower, Transforms (2)
FORMULA
E.g.f.: 1 + (g(x) + g(x)^2/2 - log(1-g(x)))/2 where g(x) = 1 + (2*x-1)*exp(x). - Andrew Howroyd, Sep 12 2018
PROG
(PARI) seq(n)={my(p=1+(2*x-1)*exp(x + O(x*x^n))); Vec(1 + serlaplace(p + p^2/2 - log(1-p))/2)} \\ Andrew Howroyd, Sep 12 2018
CROSSREFS
Sequence in context: A020082 A020037 A086365 * A198057 A263004 A002750
KEYWORD
nonn
EXTENSIONS
a(0)=1 prepended and terms a(19) and beyond from Andrew Howroyd, Sep 12 2018
STATUS
approved