A032044 "BFK" (reversible, size, unlabeled) transform of 2,1,1,1...

1, 2, 1, 3, 3, 4, 10, 11, 17, 21, 51, 55, 88, 116, 161, 312, 381, 544, 748, 1055, 1331, 2493, 2925, 4279, 5626, 7916, 10187, 13872, 22179, 27568, 38062, 50687, 68345, 89337, 120063, 151999, 237592, 289136, 396905, 512496, 693993

Offset

0,2

Links

Andrew Howroyd, Table of n, a(n) for n = 0..1000

C. G. Bower, Transforms (2)

Prog

(PARI) seq(n)={apply(p->subst(serlaplace(p + polcoeff(p, 1)), y, 1)/2, Vec(y-1 + (1+2*x*y)*prod(k=2, n, 1 + x^k*y + O(x*x^n))))} \\ Andrew Howroyd, Jun 21 2018

Crossrefs

Sequence in context: A078019 A038071 A032140 * A321762 A158974 A355659

Adjacent sequences: A032041 A032042 A032043 * A032045 A032046 A032047

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended by Andrew Howroyd, Jun 21 2018

Status

approved