A032043 "BFK" (reversible, size, unlabeled) transform of 2,2,2,2...

1, 2, 2, 6, 6, 10, 34, 38, 62, 90, 306, 334, 574, 794, 1226, 3390, 4014, 6370, 9130, 13598, 18470, 48114, 55290, 88966, 123238, 184178, 245714, 358710, 771990, 937210, 1427698, 1992662, 2882894, 3895626, 5533314, 7318270, 14935246

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+prod(k=1, n, 1 + 2*x^k*y + O(x*x^n))))} \\ Andrew Howroyd, Jun 21 2018

Crossrefs

a(n) = (A032005(n) + 2)/2.

Sequence in context: A007040 A351017 A032139 * A200561 A241380 A028476

Adjacent sequences: A032040 A032041 A032042 * A032044 A032045 A032046

Keyword

nonn

Author

Christian G. Bower

Extensions

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

Status

approved