login
A012711
Expansion of e.g.f. arcsin(arctanh(x) * exp(x)).
0
0, 1, 2, 6, 24, 168, 1360, 14280, 170688, 2420096, 38403328, 687737600, 13562531840, 293985622656, 6920272523008, 176170136886016, 4816418604806144, 140839702493749248, 4384422821203968000
OFFSET
0,3
EXAMPLE
x + 2/2!*x^2 + 6/3!*x^3 + 24/4!*x^4 + 168/5!*x^5 ...
CROSSREFS
Sequence in context: A308111 A121773 A304996 * A356579 A352059 A073973
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