G.f.: A(x) = 1 + x*F(x)*G(x) where F(x) = A(x/F(x)) and G(x) = A(x*G(x)).

A184509

G.f.: A(x) = 1 + x*F(x)*G(x) where F(x) = A(x/F(x)) and G(x) = A(x*G(x)).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =17a(5) =78a(6) =423a(7) =2547a(8) =16809a(9) =119633a(10) =904868a(11) =7217525a(12) =60369382a(13) =526911858a(14) =4781722888a(15) =44992996528a(16) =437927234508

External references