Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its north, west, northeast or southeast neighbor modulo n and the upper left element equal to 0.
A266852
Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its north, west, northeast or southeast neighbor modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =6a(4) =171a(5) =7637a(6) =597012a(7) =61297802a(8) =8302773834
External references
- oeis: A266852