A032211 "DFJ" (bracelet, size, labeled) transform of 1,2,3,4...

1, 1, 2, 9, 16, 85, 516, 1519, 6280, 45441, 1036540, 3057571, 19015404, 113149777, 1303782858, 58924767945, 201133190416, 1373883085105, 9025607302524, 77866915459771, 1150905029014900, 93546293477336721

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(y-1+serlaplace(prod(k=1, n, 1 + k*x^k*y/k! + O(x*x^n))))] \\ Andrew Howroyd, Sep 11 2018

Crossrefs

Sequence in context: A185252 A055259 A032299 * A032136 A032040 A045661

Adjacent sequences: A032208 A032209 A032210 * A032212 A032213 A032214

Keyword

nonn

Author

Christian G. Bower

Extensions

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

Status

approved