G.f. satisfies A(x) = 1 + x * A(x)^3 * (1 - A(x) + A(x)^2 - A(x)^3 + A(x)^4).
A370476
G.f. satisfies A(x) = 1 + x * A(x)^3 * (1 - A(x) + A(x)^2 - A(x)^3 + A(x)^4).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =38a(4) =342a(5) =3377a(6) =35371a(7) =385945a(8) =4339656a(9) =49932707a(10) =585090560a(11) =6957809536a(12) =83757820470
External references
- oeis: A370476