Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element plus any horizontal neighbor equal to n-1.
A265881
Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element plus any horizontal neighbor equal to n-1.
Terms
- a(0) =0a(1) =2a(2) =894a(3) =1584088a(4) =10856237680
External references
- oeis: A265881