E.g.f. A(x) satisfies A(x) = exp( x / (1+x^2)^2 * A(x)^2 ).

A390270

E.g.f. A(x) satisfies A(x) = exp( x / (1+x^2)^2 * A(x)^2 ).

Terms

    a(0) =1a(1) =1a(2) =5a(3) =37a(4) =489a(5) =9121a(6) =214333a(7) =6085605a(8) =202903697a(9) =7772761441a(10) =336445605621

External references