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 1, and rows and columns in increasing lexicographic order.
A263513
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 1, and rows and columns in increasing lexicographic order.
Terms
- a(0) =7a(1) =35a(2) =208a(3) =1198a(4) =7022a(5) =41035a(6) =240237a(7) =1406038a(8) =8230727a(9) =48180019a(10) =282036139a(11) =1650978414a(12) =9664491503a(13) =56573952014a(14) =331172398977
External references
- oeis: A263513