Expansion of g.f. 1/(1-4*x*C) where C = (1/2-1/2*(1-4*x)^(1/2))/x = g.f. for Catalan numbers A000108.
A076035
Expansion of g.f. 1/(1-4*x*C) where C = (1/2-1/2*(1-4*x)^(1/2))/x = g.f. for Catalan numbers A000108.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =104a(4) =548a(5) =2904a(6) =15432a(7) =82128a(8) =437444a(9) =2331128a(10) =12426200a(11) =66250672a(12) =353258536a(13) =1883768176a(14) =10045773072a(15) =53573890464a(16) =285714489348
External references
- oeis: A076035