G.f. A(x) satisfies: A(x - 2*x*A(x)) = x - x*A(x).
A291813
G.f. A(x) satisfies: A(x - 2*x*A(x)) = x - x*A(x).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =35a(4) =297a(5) =2873a(6) =30657a(7) =353727a(8) =4355497a(9) =56709337a(10) =775575269a(11) =11085971235a(12) =164979882033
External references
- oeis: A291813