E.g.f. satisfies: A(x) = x*(tan(exp(A(x))-1)+1).

A133984

E.g.f. satisfies: A(x) = x*(tan(exp(A(x))-1)+1).

Terms

    a(0) =0a(1) =1a(2) =2a(3) =9a(4) =72a(5) =845a(6) =12972a(7) =244741a(8) =5468176a(9) =141111693a(10) =4129615540a(11) =135127313101

External references