E.g.f. A(x) satisfies: d/dx A(x) = 1 + (1/(1 - x)) * A(x/(1 - x)).

A331660

E.g.f. A(x) satisfies: d/dx A(x) = 1 + (1/(1 - x)) * A(x/(1 - x)).

Terms

    a(0) =1a(1) =1a(2) =5a(3) =32a(4) =280a(5) =3280a(6) =49480a(7) =927560a(8) =21037640a(9) =566134160a(10) =17803754560a(11) =646052181520

External references