Expansion of 1/(1+9*x*c(x)), where c(x) = g.f. for Catalan numbers A000108.
A127053
Expansion of 1/(1+9*x*c(x)), where c(x) = g.f. for Catalan numbers A000108.
Terms
- a(0) =1a(1) =-9a(2) =72a(3) =-585a(4) =4734a(5) =-38358a(6) =310662a(7) =-2516481a(8) =20383110a(9) =-165104478a(10) =1337341896a(11) =-10832484474a(12) =87743071332a(13) =-710719065000
External references
- oeis: A127053