G.f. A(x) satisfies: A(x - 3*x*A(x)) = x - 2*x*A(x).
A291814
G.f. A(x) satisfies: A(x - 3*x*A(x)) = x - 2*x*A(x).
Terms
- a(0) =1a(1) =1a(2) =7a(3) =67a(4) =769a(5) =10009a(6) =143359a(7) =2218255a(8) =36625657a(9) =639659737a(10) =11741022235a(11) =225390779647
External references
- oeis: A291814