G.f. A(x) satisfies: A( 2*x - A(x) ) = 2*x - A(x) + x^2.
A292809
G.f. A(x) satisfies: A( 2*x - A(x) ) = 2*x - A(x) + x^2.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =9a(4) =56a(5) =420a(6) =3572a(7) =33328a(8) =334354a(9) =3559310a(10) =39838760a(11) =465743720a(12) =5658983108a(13) =71191948512a(14) =924554859776
External references
- oeis: A292809