Number of nX4 binary arrays with no two ones adjacent horizontally, diagonally or antidiagonally.
A228679
Number of nX4 binary arrays with no two ones adjacent horizontally, diagonally or antidiagonally.
Terms
- a(0) =8a(1) =40a(2) =216a(3) =1152a(4) =6160a(5) =32928a(6) =176032a(7) =941056a(8) =5030848a(9) =26894720a(10) =143778176a(11) =768632832a(12) =4109082880a(13) =21967006208a(14) =117434808832a(15) =627802177536
External references
- oeis: A228679