Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 filled by rows with each element moved a city block distance of 0 or 2, and rows and columns in increasing lexicographic order.
A263600
Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 filled by rows with each element moved a city block distance of 0 or 2, and rows and columns in increasing lexicographic order.
Terms
- a(0) =15a(1) =1687a(2) =69792a(3) =2736666a(4) =123176874a(5) =5641347668a(6) =249947653938
External references
- oeis: A263600