Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2.
A264220
Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2.
Terms
- a(0) =25a(1) =596a(2) =7949a(3) =97332a(4) =1333336a(5) =17998869a(6) =239444309a(7) =3206571105a(8) =42979177264a(9) =575296080953
External references
- oeis: A264220