Second diagonal of triangle A108990, in which the g.f. of row n, R_n(x), satisfies: [x^k] R_{n+1}(x) = [x^k] (1 + x*R_n(x))^(n+1) for k=0..n+1.
A108992
Second diagonal of triangle A108990, in which the g.f. of row n, R_n(x), satisfies: [x^k] R_{n+1}(x) = [x^k] (1 + x*R_n(x))^(n+1) for k=0..n+1.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =76a(4) =1025a(5) =19656a(6) =495964a(7) =15629720a(8) =593136513a(9) =26392662280
External references
- oeis: A108992