Number of (2+2) X (n+2) arrays of permutations of 0..n*4+7 with each element moved 0 or 1 knight moves and equal numbers of elements advancing and retreating in the array numbered in row major order.
A263708
Number of (2+2) X (n+2) arrays of permutations of 0..n*4+7 with each element moved 0 or 1 knight moves and equal numbers of elements advancing and retreating in the array numbered in row major order.
Terms
- a(0) =569a(1) =18995a(2) =474101a(3) =14115520a(4) =452888405a(5) =14143461755a(6) =445447784440
External references
- oeis: A263708