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

A268118

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

Terms

    a(0) =1a(1) =35a(2) =114a(3) =1256a(4) =23522a(5) =726627a(6) =36708187a(7) =3039274773

External references