E.g.f. satisfies: A(x) = x/(1 - tanh(A(x))).

A214225

E.g.f. satisfies: A(x) = x/(1 - tanh(A(x))).

Terms

    a(0) =1a(1) =2a(2) =12a(3) =112a(4) =1440a(5) =23616a(6) =471296a(7) =11085824a(8) =300349440a(9) =9211187200a(10) =315448860672

External references