G.f. satisfies: x = A(x) - A(x)^2 - A(A(x))^2.
A177409
G.f. satisfies: x = A(x) - A(x)^2 - A(A(x))^2.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =108a(4) =1208a(5) =15536a(6) =220832a(7) =3390480a(8) =55411872a(9) =954553664a(10) =17211258240a(11) =323148560768
External references
- oeis: A177409