Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 4 1s.
A295204
Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 4 1s.
Terms
- a(0) =1a(1) =13a(2) =111a(3) =777a(4) =5831a(5) =40924a(6) =279663a(7) =1900344a(8) =12981261a(9) =89115875a(10) =612783404a(11) =4213804514a(12) =28966104726a(13) =199059108169
External references
- oeis: A295204