OFFSET
0,3
LINKS
Muniru A Asiru, Table of n, a(n) for n = 0..100
EXAMPLE
x + 2/2!*x^2 + 2/3!*x^3 - 16/4!*x^4 - 160/5!*x^5 ...
MAPLE
seq(coeff(series(factorial(n)*arctan(sinh(x)*exp(x)), x, n+1), x, n), n=0..20); # Muniru A Asiru, Jul 19 2018
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
a(0) inserted and title improved by Sean A. Irvine, Jul 19 2018
STATUS
approved