Square array of coefficients in the successive iterations of x*C(x) = (1-sqrt(1-4*x))/2 where C(x) is the g.f. of the Catalan numbers (A000108); read by antidiagonals.
A158825
Square array of coefficients in the successive iterations of x*C(x) = (1-sqrt(1-4*x))/2 where C(x) is the g.f. of the Catalan numbers (A000108); read by antidiagonals.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =1a(7) =3a(8) =6a(9) =5a(10) =1a(11) =4a(12) =12a(13) =21a(14) =14a(15) =1a(16) =5a(17) =20a(18) =54a(19) =80a(20) =42a(21) =1a(22) =6a(23) =30a(24) =110a(25) =260a(26) =322a(27) =132a(28) =1a(29) =7
External references
- oeis: A158825