A032224 "DGJ" (bracelet, element, labeled) transform of 1,2,3,4...

1, 1, 2, 9, 22, 115, 576, 2569, 26860, 190761, 1525420, 19634131, 210376464, 2087806747, 24758846490, 428700704475, 4942787438656, 60082160134345, 1081105184764044, 18121411400219011, 271157721708302920

Offset

0,3

Links

Andrew Howroyd, Table of n, a(n) for n = 0..200

C. G. Bower, Transforms (2)

Prog

(PARI) seq(n)=[subst(serlaplace(p/y + polcoeff(p, 1) + polcoeff(p, 2)), y, 1)/2 | p <- Vec(serlaplace(y-1+prod(k=1, n, (1 + x^k*y/k! + O(x*x^n))^k)))] \\ Andrew Howroyd, Sep 11 2018

Crossrefs

Sequence in context: A330419 A025176 A032315 * A254710 A193758 A368626

Adjacent sequences: A032221 A032222 A032223 * A032225 A032226 A032227

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended by Andrew Howroyd, Sep 11 2018

Status

approved