G.f. satisfies: A(x) = 1 + Sum_{n>=1} x^n*A(x)^(2^n).
A159609
G.f. satisfies: A(x) = 1 + Sum_{n>=1} x^n*A(x)^(2^n).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =57a(5) =304a(6) =1778a(7) =11329a(8) =79293a(9) =626614a(10) =5911340a(11) =72622218a(12) =1271963335a(13) =33126504453
External references
- oeis: A159609