G.f. satisfies: A(x) = Sum_{n>=0} x^n*A(x)^n / Product_{k=1..n} (1 - k*x).

A225293

G.f. satisfies: A(x) = Sum_{n>=0} x^n*A(x)^n / Product_{k=1..n} (1 - k*x).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =11a(4) =46a(5) =210a(6) =1022a(7) =5232a(8) =27954a(9) =155142a(10) =892007a(11) =5306785a(12) =32662475a(13) =208108337a(14) =1374219242a(15) =9418564346a(16) =67102315232a(17) =497617712664

External references