The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A356819 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A356819

Expansion of e.g.f. exp(-x * exp(2*x)).
(history; published version)

#3 by Seiichi Manyama at Mon Aug 29 12:24:39 EDT 2022

PROG

(PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(exp(-x*exp(2*x))))

(PARI) my(N=30, x='x+O('x^N)); Vec(sum(k=0, N, (-x)^k/(1-2*k*x)^(k+1)))

(PARI) a(n) = sum(k=0, n, (-1)^k*(2*k)^(n-k)*binomial(n, k));

#2 by Seiichi Manyama at Mon Aug 29 12:23:34 EDT 2022

NAME

allocated for Seiichi Manyama

Expansion of e.g.f. exp(-x * exp(2*x)).

DATA

1, -1, -3, -1, 41, 239, 229, -8401, -87151, -324577, 3238541, 70271519, 601086265, 142860431, -81504662539, -1393683935281, -10777424809951

OFFSET

0,3

CROSSREFS

Cf. A356812.

KEYWORD

allocated

sign

AUTHOR

Seiichi Manyama, Aug 29 2022

STATUS

approved