OFFSET
0,3
LINKS
Muniru A Asiru, Table of n, a(n) for n = 0..100
EXAMPLE
2/2!*x^2 - 3/3!*x^3 + 12/4!*x^4 - 40/5!*x^5 ...
MAPLE
seq(coeff(series(factorial(n)*arctan(sinh(x)*log(x+1)), x, n+1), x, n), n=0..20); # Muniru A Asiru, Jul 19 2018
MATHEMATICA
With[{nn=20}, CoefficientList[Series[ArcTan[Sinh[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jul 04 2021 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
a(0) and a(1) inserted and title improved by Sean A. Irvine, Jul 19 2018
STATUS
approved