Number of (n+1)X(2+1) arrays of permutations of 0..n*3+2 filled by rows with each element moved a city block distance of 0 or 2, and rows and columns in increasing lexicographic order.
A263599
Number of (n+1)X(2+1) arrays of permutations of 0..n*3+2 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) =7a(1) =144a(2) =1962a(3) =24091a(4) =317857a(5) =4177099a(6) =54493144a(7) =712019936a(8) =9311616740a(9) =121698578760
External references
- oeis: A263599