G.f. A(x) satisfies A(x) = (1 + x) * B(x*A(x)), where B(x) is the g.f. of A001764.

A381937

G.f. A(x) satisfies A(x) = (1 + x) * B(x*A(x)), where B(x) is the g.f. of A001764.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =35a(4) =240a(5) =1805a(6) =14386a(7) =119365a(8) =1020136a(9) =8918423a(10) =79380514a(11) =716911887a(12) =6553219720a(13) =60513355786a(14) =563648995020

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