a(n) = 2^(n^2+n) * binomial(2*n-1 + 1/2^n, n) / (n*2^n + 1).
A159318
a(n) = 2^(n^2+n) * binomial(2*n-1 + 1/2^n, n) / (n*2^n + 1).
Terms
- a(0) =1a(1) =2a(2) =26a(3) =1804a(4) =591894a(5) =860081340
External references
- oeis: A159318
A159318
a(n) = 2^(n^2+n) * binomial(2*n-1 + 1/2^n, n) / (n*2^n + 1).