a(0) = 1; a(n) = Sum_{k=1..n} (2^k-1) * a(k-1) * a(n-k).
A376111
a(0) = 1; a(n) = Sum_{k=1..n} (2^k-1) * a(k-1) * a(n-k).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =35a(4) =600a(5) =19942a(6) =1299768a(7) =167796051a(8) =43131308656
External references
- oeis: A376111