Number of (n+1) X (6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 0,2 or 1,2.
A264130
Number of (n+1) X (6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 0,2 or 1,2.
Terms
- a(0) =976a(1) =53280a(2) =2920000a(3) =160564000a(4) =8830490000a(5) =485643650000
External references
- oeis: A264130