Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.
A264063
Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.
Terms
- a(0) =1a(1) =320a(2) =102400a(3) =5760000a(4) =324000000a(5) =34260048000
External references
- oeis: A264063