G.f. A(x) satisfies x = A( A(x) + 4*A(x)^2 ).
A307103
G.f. A(x) satisfies x = A( A(x) + 4*A(x)^2 ).
Terms
- a(0) =0a(1) =1a(2) =-2a(3) =12a(4) =-96a(5) =880a(6) =-8720a(7) =90752a(8) =-975936a(9) =10737152a(10) =-120093056a(11) =1360051456a(12) =-15556087296a(13) =179424700416
External references
- oeis: A307103