Number of (n+1) X 2 binary arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant.
A185479
Number of (n+1) X 2 binary arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant.
Terms
- a(0) =0a(1) =30a(2) =76a(3) =234a(4) =632a(5) =1832a(6) =5182a(7) =14860a(8) =42346a(9) =121016a(10) =345376a(11) =986330a(12) =2815960a(13) =8040658a(14) =22957720a(15) =65550976a(16) =187164486a(17) =534405148a(18) =1525866290a(19) =4356753200a(20) =12439678168a(21) =35518569746a(22) =101414891304a(23) =289566302122a(24) =826788250864
External references
- oeis: A185479