Number of (n+2)X(2+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.
A263705
Number of (n+2)X(2+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) =475a(1) =18995a(2) =437533a(3) =13341380a(4) =414860767a(5) =13151405753a(6) =409464954596
External references
- oeis: A263705