Fourth column of triangle A075504.
A076010
Fourth column of triangle A075504.
Terms
- a(0) =1a(1) =90a(2) =5265a(3) =255150a(4) =11160261a(5) =458810730a(6) =18124795305a(7) =697117731750
External references
- oeis: A076010
A076010
Fourth column of triangle A075504.