Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
A284766
Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
Terms
- a(0) =1a(1) =14a(2) =119a(3) =720a(4) =5637a(5) =38792a(6) =298003a(7) =2180148a(8) =16717575a(9) =125826436a(10) =966619242a(11) =7382318636a(12) =56924033734a(13) =438478307376
External references
- oeis: A284766