Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 filled by rows with each element moved a city block distance of 1 or 2, and rows and columns in increasing lexicographic order.
A263589
Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 filled by rows with each element moved a city block distance of 1 or 2, and rows and columns in increasing lexicographic order.
Terms
- a(0) =18a(1) =3035a(2) =145151a(3) =8296414a(4) =479355276a(5) =24453863816
External references
- oeis: A263589