Secondary diagonal of symmetric triangle A126155: a(n) = A126155(n+1,n).
A126158
Secondary diagonal of symmetric triangle A126155: a(n) = A126155(n+1,n).
Terms
- a(0) =1a(1) =35a(2) =1195a(3) =63365a(4) =5126905a(5) =594825635a(6) =93900238195
External references
- oeis: A126158