a(n) = 2^(n^2+n) * C(n-1 + 1/2^n, n) = [x^n] 1/(1 - 2^(n+1)*x)^(1/2^n).
A159558
a(n) = 2^(n^2+n) * C(n-1 + 1/2^n, n) = [x^n] 1/(1 - 2^(n+1)*x)^(1/2^n).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =204a(4) =18326a(5) =7157436a(6) =11867138452
External references
- oeis: A159558