Number of (n+2)X(1+2) arrays of permutations of 0..n*3+5 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.
A263704
Number of (n+2)X(1+2) arrays of permutations of 0..n*3+5 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) =49a(1) =569a(2) =4020a(3) =38769a(4) =355145a(5) =3191484a(6) =28681889a(7) =268042897a(8) =2478073156a(9) =22988521889a(10) =213950264057
External references
- oeis: A263704