Number of n X 2 binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors.
A183510
Number of n X 2 binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors.
Terms
- a(0) =2a(1) =4a(2) =11a(3) =24a(4) =56a(5) =121a(6) =272a(7) =612a(8) =1373a(9) =3082a(10) =6914a(11) =15501a(12) =34784a(13) =78034a(14) =175061a(15) =392748a(16) =881084a(17) =1976647a(18) =4434500a(19) =9948474a(20) =22318763a(21) =50070676a(22) =112330190a(23) =252005457a(24) =565357670a(25) =1268342734a(26) =2845443827a(27) =6383566410a(28) =14321112518a(29) =32128477051
External references
- oeis: A183510