Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,1 or 2,-2.
A264093
Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,1 or 2,-2.
Terms
- a(0) =32a(1) =715a(2) =24010a(3) =645627a(4) =19553300a(5) =563080476a(6) =16552783250a(7) =482814424352
External references
- oeis: A264093