a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} k^3 * a(k) * a(n-1-k).
A386444
a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} k^3 * a(k) * a(n-1-k).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =19a(4) =550a(5) =36314a(6) =4612644a(7) =1005608259a(8) =346940795318
External references
- oeis: A386444