Number of nX(n+3) arrays of permutations of n+3 copies of 0..n-1 with every element equal to or 1 greater than any west or southwest neighbors modulo n and the upper left element equal to 0.
A267566
Number of nX(n+3) arrays of permutations of n+3 copies of 0..n-1 with every element equal to or 1 greater than any west or southwest neighbors modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =126a(2) =550a(3) =11048a(4) =392186a(5) =21893719a(6) =1883165721a(7) =250936616799
External references
- oeis: A267566