Fifth right hand column (n-m=4) of the A156920 triangle.
A156924
Fifth right hand column (n-m=4) of the A156920 triangle.
Terms
- a(0) =1a(1) =83a(2) =2685a(3) =56285a(4) =919615a(5) =12813843a(6) =160206627a(7) =1854550395a(8) =20291056470a(9) =212826091180
External references
- oeis: A156924