Number of n X 2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its west or north neighbor modulo n and the upper left element equal to 0.
A266316
Number of n X 2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its west or north neighbor modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =35a(4) =1007a(5) =54819a(6) =4318217a(7) =458508379a(8) =62976460150
External references
- oeis: A266316