Triangle of coefficients of polynomials P_n(z) defined by the recursion P_0(z) = z+1; for n>=1, P_n(z) = z + Product_{k=0..n-1} P_k(z).

A177701

Triangle of coefficients of polynomials P_n(z) defined by the recursion P_0(z) = z+1; for n>=1, P_n(z) = z + Product_{k=0..n-1} P_k(z).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =2a(5) =4a(6) =1a(7) =4a(8) =14a(9) =16a(10) =8a(11) =1a(12) =16a(13) =112a(14) =324a(15) =508a(16) =474a(17) =268a(18) =88a(19) =16a(20) =1a(21) =256a(22) =3584a(23) =22912a(24) =88832a(25) =233936a(26) =443936a(27) =628064a(28) =675456a(29) =557492

External references