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A032318 Shifts left under "EGJ" (unordered, element, labeled) transform. 1
2, 2, 4, 16, 78, 458, 3614, 31418, 315146, 3566102, 44827218, 620168182, 9347754294, 152775554602, 2687701571514, 50670888880518, 1018944127466708, 21770157246285044, 492495459066530344, 11760335921226686984, 295609024379492858260, 7801944836722158839916 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Andrew Howroyd, Table of n, a(n) for n = 1..200

C. G. Bower, Transforms (2)

PROG

(PARI) EGJ(v)={Vec(serlaplace(prod(k=1, #v, (1 + x^k/k! + O(x*x^#v))^v[k]))-1, -#v)}

seq(n)={my(v=[2]); for(n=2, n, v=concat([2], EGJ(v))); v} \\ Andrew Howroyd, Sep 11 2018

(PARI) seq(n)={my(p=(1+x)^2 + O(x^n)); for(k=2, n-1, p*=(1 + x^k/k! + O(x^n))^((k-1)!*polcoef(p, k-1))); Vec(1+serlaplace(p))} \\ Andrew Howroyd, Sep 20 2018

CROSSREFS

Sequence in context: A291338 A009542 A244108 * A090753 A091788 A063401

Adjacent sequences:  A032315 A032316 A032317 * A032319 A032320 A032321

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

Terms a(20) and beyond from Andrew Howroyd, Sep 20 2018

STATUS

approved

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Last modified October 20 01:36 EDT 2018. Contains 316378 sequences. (Running on oeis4.)