|
| |
|
|
A012861
|
|
Numerator of the coefficient of [x^(2n)] of the Taylor series log(cosec(x)*arctanh(x))= x^2/2 +3*x^4/20 +4*x^6/45 +203*x^8/3240 +2038*x^10/42525 +...
|
|
1
|
|
|
|
1, 3, 4, 203, 2038, 319561, 61425307, 8552625673, 11620410478, 16155306808034, 1810024463827637, 147005475101499533, 139995370486066058107, 7441717839455761431719, 66171433716055691335387
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
The inner function is cosec(x)*arctanh(x) = 1+ x^2/2 +11*x^4/40 +133*x^6/720 +36211*x^8/259200 +1226971*x^10/10886400 +...
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn,frac
|
|
|
AUTHOR
|
Patrick Demichel (patrick.demichel(AT)hp.com)
|
|
|
EXTENSIONS
|
Values replaced by numerators. - R. J. Mathar, Dec 20 2011
|
|
|
STATUS
|
approved
|
| |
|
|
