1/6 the number of (n+1)X6 0..2 arrays with every 2X2 subblock containing all three values.
A183599
1/6 the number of (n+1)X6 0..2 arrays with every 2X2 subblock containing all three values.
Terms
- a(0) =2376a(1) =78729a(2) =2366412a(3) =72592860a(4) =2220901926a(5) =68026656422
External references
- oeis: A183599