Number of n X (n+2) arrays of permutations of n+2 copies of 0..n-1 with every element equal to or 1 greater than any north, west or northeast neighbors modulo n and the upper left element equal to 0.

A267394

Number of n X (n+2) arrays of permutations of n+2 copies of 0..n-1 with every element equal to or 1 greater than any north, west or northeast neighbors modulo n and the upper left element equal to 0.

Terms

    a(0) =1a(1) =35a(2) =33a(3) =127a(4) =626a(5) =4189a(6) =38879a(7) =501695a(8) =9072793

External references