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A012715
Expansion of e.g.f. sinh(arctanh(x) * exp(x)).
0
0, 1, 2, 6, 24, 160, 1120, 9296, 79744, 791232, 8303488, 98662784, 1234416128, 17090231808, 247660907520, 3911062116352, 64395491606528, 1142963925405696, 21081499860049920, 415641154415091712
OFFSET
0,3
EXAMPLE
x + 2/2!*x^2 + 6/3!*x^3 + 24/4!*x^4 + 160/5!*x^5 ...
CROSSREFS
Sequence in context: A013010 A275955 A009608 * A038205 A012361 A308111
KEYWORD
nonn
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
a(0) inserted and title improved by Sean A. Irvine, Jul 24 2018
STATUS
approved