Column 2 of triangle A113365, also equals column 1 of A113340^6.
A113367
Column 2 of triangle A113365, also equals column 1 of A113340^6.
Terms
- a(0) =1a(1) =18a(2) =297a(3) =5349a(4) =109095a(5) =2529909a(6) =66345668a(7) =1951815218a(8) =63879120597
External references
- oeis: A113367