Triangular sequence from coefficients of the polynomial recursion: p(x,n)=Sum[Binomial[n, m]*p[x, m]*p[x, n - m - 1], {m, 0, n - 1}].
A157526
Triangular sequence from coefficients of the polynomial recursion: p(x,n)=Sum[Binomial[n, m]*p[x, m]*p[x, n - m - 1], {m, 0, n - 1}].
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =3a(5) =15a(6) =18a(7) =3a(8) =105a(9) =150a(10) =45a(11) =945a(12) =1575a(13) =675a(14) =45a(15) =10395a(16) =19845a(17) =11025a(18) =1575a(19) =135135a(20) =291060a(21) =198450a(22) =44100a(23) =1575a(24) =2027025a(25) =4864860a(26) =3929310a(27) =1190700a(28) =99225a(29) =34459425
External references
- oeis: A157526