Number of 3Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.
A297340
Number of 3Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.
Terms
- a(0) =8a(1) =21a(2) =96a(3) =334a(4) =1310a(5) =4888a(6) =18604a(7) =70255a(8) =266149a(9) =1006942a(10) =3811738a(11) =14425839a(12) =54601094a(13) =206654096a(14) =782157108a(15) =2960335613a(16) =11204414255a(17) =42406931107a(18) =160503589065a(19) =607480807913
External references
- oeis: A297340