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

A360939

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

Terms

    a(0) =1a(1) =2a(2) =16a(3) =212a(4) =4016a(5) =99952a(6) =3096448a(7) =115063328a(8) =4993598464a(9) =248071645952

External references