Column 0 of triangle A113387, also equals column 0 of A113389^2.
A113388
Column 0 of triangle A113387, also equals column 0 of A113389^2.
Terms
- a(0) =1a(1) =6a(2) =48a(3) =605a(4) =11196a(5) =280440a(6) =8981460a(7) =353283128a(8) =16567072675a(9) =905357065354
External references
- oeis: A113388