a(n) = 2^n * Sum_{k=1 .. n-1} a(k) * a(n-1-k) with a(0) = 1.
A254744
a(n) = 2^n * Sum_{k=1 .. n-1} a(k) * a(n-1-k) with a(0) = 1.
Terms
- a(0) =1a(1) =2a(2) =16a(3) =288a(4) =10240a(5) =700416a(6) =92864512a(7) =24184487936
External references
- oeis: A254744