Coefficient of x^n of A(x)^n is A005651(n), which is the sum of multinomial coefficients for n.
A088946
Coefficient of x^n of A(x)^n is A005651(n), which is the sum of multinomial coefficients for n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =13a(6) =86a(7) =466a(8) =3830a(9) =29633a(10) =289480a(11) =2865826a(12) =32992576a(13) =394893590a(14) =5267005771a(15) =73816682108
External references
- oeis: A088946