Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 filled by rows with each element moved a city block distance of 0 or 1, and rows and columns in increasing lexicographic order.
A263515
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 filled by rows with each element moved a city block distance of 0 or 1, and rows and columns in increasing lexicographic order.
Terms
- a(0) =29a(1) =660a(2) =18369a(3) =489294a(4) =13332096a(5) =362159570a(6) =9866744449a(7) =268827612021
External references
- oeis: A263515