Half the number of (n+1) X 3 binary arrays with equal numbers of majority one 2 X 2 subblocks and majority zero 2 X 2 subblocks.
A184460
Half the number of (n+1) X 3 binary arrays with equal numbers of majority one 2 X 2 subblocks and majority zero 2 X 2 subblocks.
Terms
- a(0) =7a(1) =35a(2) =244a(3) =1693a(4) =12324a(5) =89908a(6) =667600a(7) =5002165a(8) =37777626a(9) =286971238a(10) =2190689600a(11) =16790412468a(12) =129127710164a(13) =995937115474
External references
- oeis: A184460