Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its north neighbor modulo n and the upper left element equal to 0.
A266452
Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its north neighbor modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =101a(4) =3417a(5) =184881a(6) =14216101a(7) =1477674733a(8) =199405047857
External references
- oeis: A266452