|
|
A012523
|
|
sech(sinh(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-23/4!*x^4-20/5!*x^5...
|
|
0
|
|
|
1, 0, -1, -6, -23, -20, 743, 9422, 64433, 19032, -7391889, -131529310, -1204724391, 2412614724, 343942765463, 7487171500918, 80039031954145, -547487821933904, -48046886269866657, -1195424254383765686
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,4
|
|
LINKS
|
|
|
MATHEMATICA
|
With[{nn=20}, CoefficientList[Series[Sech[Sinh[x]Exp[x]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Dec 15 2012 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
Patrick Demichel (patrick.demichel(AT)hp.com)
|
|
STATUS
|
approved
|
|
|
|