G.f. A(x) has the property that the first (n+1) terms of A(x)^(n+1) form the n-th row polynomial R_n(y) of triangle A097190 and satisfy R_n(1/3) = 9^n for all n>=0.
A097191
G.f. A(x) has the property that the first (n+1) terms of A(x)^(n+1) form the n-th row polynomial R_n(y) of triangle A097190 and satisfy R_n(1/3) = 9^n for all n>=0.
Terms
- a(0) =1a(1) =12a(2) =60a(3) =90a(4) =-558a(5) =-2916a(6) =2160a(7) =61155a(8) =137619a(9) =-767880a(10) =-4940676a(11) =0a(12) =95128668a(13) =285386004a(14) =-974126979a(15) =-8413235910a(16) =-6504831279a(17) =142312459626a(18) =552074177142
External references
- oeis: A097191