G.f. A(x) satisfies A(x) = (1 + x) * C(x*A(x)), where C(x) is the g.f. of A000108.

A381787

G.f. A(x) satisfies A(x) = (1 + x) * C(x*A(x)), where C(x) is the g.f. of A000108.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =22a(4) =112a(5) =623a(6) =3664a(7) =22405a(8) =141002a(9) =907228a(10) =5940663a(11) =39459873a(12) =265228359a(13) =1800608563a(14) =12328843910a(15) =85040632504a(16) =590371016188

External references