1/120 the number of (n+1)X8 0..4 arrays with every 2X2 subblock containing four distinct values.
A183620
1/120 the number of (n+1)X8 0..4 arrays with every 2X2 subblock containing four distinct values.
Terms
- a(0) =46656a(1) =4230144a(2) =383674672a(3) =35321033072
External references
- oeis: A183620