Number of (n+2)X4 binary arrays with each 3X3 subblock nonsingular.
A185527
Number of (n+2)X4 binary arrays with each 3X3 subblock nonsingular.
Terms
- a(0) =726a(1) =4362a(2) =25854a(3) =150234a(4) =886926a(5) =5221098a(6) =30631134a(7) =180225834a(8) =1059790686a(9) =6228272058a(10) =36622083390a(11) =215312392794
External references
- oeis: A185527