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 A097181 and satisfy R_n(1/2) = 8^n for all n>=0.
A097182
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 A097181 and satisfy R_n(1/2) = 8^n for all n>=0.
Terms
- a(0) =1a(1) =7a(2) =21a(3) =21a(4) =-63a(5) =-231a(6) =-15a(7) =1521a(8) =3073a(9) =-4319a(10) =-29631a(11) =-29631a(12) =143361a(13) =489345a(14) =-255a(15) =-3342591a(16) =-6684671a(17) =9454081a(18) =64553985a(19) =64553985a(20) =-311689215a(21) =-1064175615a(22) =-4095a(23) =7266627585a(24) =14533263361a(25) =-20553129983a(26) =-140345589759a(27) =-140345589759a(28) =677648531457
External references
- oeis: A097182