A178957 Denominators in expansion of 1/(Sum_{n >= 0} (x^n/n!)*binomial(2n,n)/(n+1)).

1, 1, 1, 6, 12, 60, 180, 1008, 20160, 25920, 14175, 6652800, 23950080, 141523200, 544864320, 100590336000, 213497856000, 3952082534400, 200074178304000, 3577797070848000, 15595525693440000, 51711479930880000, 28100018194440192000, 1846572624206069760000, 14101100039391805440000, 168600109166641152000000, 2100476360034404352000000, 6405217323775501271040000, 418802671169936621568000000, 2506168365572477878272000000, 2368329105465991594967040000000

Offset: 0

Author

N. J. A. Sloane, Dec 31 2010

Keywords

• nonn

Comments

This is the reciprocal of the e.g.f. for the Catalan numbers.

Crossrefs

Cf. A000108, A178956 (numerators), A178955, A144186/A144187.