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 1 or 2, and rows and columns in increasing lexicographic order.
A263583
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 1 or 2, and rows and columns in increasing lexicographic order.
Terms
- a(0) =6a(1) =134a(2) =3035a(3) =69084a(4) =1643235a(5) =38562523a(6) =903637375a(7) =21206120278a(8) =497781904012
External references
- oeis: A263583