|
|
A178956
|
|
Numerators in expansion of 1/(Sum_{n >= 0} (x^n/n!)*binomial(2n,n)/(n+1)).
|
|
2
|
|
|
1, -1, 0, 1, 1, -1, -7, -13, 169, 233, 17, -18847, -43957, 26023, 429007, 31505483, -31381783, -753299101, -7372705283, 195152846389, 632396244331, -52258919107, -447065769153911, -13584264183406001, 34831349327448893, 674219621951483119, 2113978805943481381, -6602691591860999071, -370308752490094361609, -95867348590727618473, 752151788353653780085507
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,7
|
|
COMMENTS
|
This is the reciprocal of the e.g.f. for the Catalan numbers.
|
|
LINKS
|
|
|
EXAMPLE
|
1, -1, 0, 1/6, 1/12, -1/60, -7/180, -13/1008, 169/20160, 233/25920, 17/14175, -18847/6652800, -43957/23950080, 26023/141523200, 429007/544864320, 31505483/100590336000, ...
|
|
CROSSREFS
|
|
|
KEYWORD
|
sign,frac
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|