Number of nX3 binary arrays without the pattern 1 1 1 diagonally, vertically or horizontally.
A188561
Number of nX3 binary arrays without the pattern 1 1 1 diagonally, vertically or horizontally.
Terms
- a(0) =7a(1) =49a(2) =247a(3) =1383a(4) =7722a(5) =42712a(6) =237116a(7) =1315783a(8) =7300042a(9) =40505756a(10) =224748056a(11) =1247024929a(12) =6919195733a(13) =38391539384a(14) =213017628693
External references
- oeis: A188561