Number of (n+1)X4 0..2 arrays with every 2X2 subblock nonsingular.
A183692
Number of (n+1)X4 0..2 arrays with every 2X2 subblock nonsingular.
Terms
- a(0) =1970a(1) =66658a(2) =2235330a(3) =75166498a(4) =2525447442a(5) =84872526674
External references
- oeis: A183692