Column 2 of triangle A113340, also equals column 0 of A113340^5.
A113342
Column 2 of triangle A113340, also equals column 0 of A113340^5.
Terms
- a(0) =1a(1) =5a(2) =35a(3) =325a(4) =3880a(5) =57560a(6) =1030751a(7) =21763632a(8) =531604250a(9) =14789895891a(10) =462672349092
External references
- oeis: A113342