Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 1,0 or 1,2.
A264274
Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 1,0 or 1,2.
Terms
- a(0) =25a(1) =305a(2) =3721a(3) =40626a(4) =443556a(5) =4861800a(6) =53290000a(7) =586058600a(8) =6445199524a(9) =70892939818a(10) =779775536401
External references
- oeis: A264274