E.g.f.: A(x) = exp( Integral A(x)^x dx ).

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =9a(5) =41a(6) =201a(7) =1251a(8) =8433a(9) =66929a(10) =572081a(11) =5531491a(12) =57181881a(13) =652539993a(14) =7907542969a(15) =104062458371