A032014 "AGJ" (ordered, elements, labeled) transform of 2,2,2,2,...

1, 2, 6, 26, 190, 722, 7770, 50570, 303614, 4978898, 28560946, 249598010, 3921446506, 40463101850, 312501134098, 2922002830706, 81019507028734, 621574793581010, 6971887587108882, 67208089701951674, 1804527636721939490, 24767209606785282698, 246837597799949869378

Offset

0,2

Links

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

C. G. Bower, Transforms (2)

Prog

(PARI) seq(n)=[subst(serlaplace(y^0*p), y, 1) | p <- Vec(serlaplace(prod(k=1, n, 1 + x^k*y/k! + O(x*x^n))^2))] \\ Andrew Howroyd, Sep 13 2018

Crossrefs

Sequence in context: A351288 A355211 A211604 * A112948 A007139 A306147

Adjacent sequences: A032011 A032012 A032013 * A032015 A032016 A032017

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended and terms a(20) and beyond from Andrew Howroyd, Sep 13 2018

Status

approved