Number of nX3 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors.

A183468

Number of nX3 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors.

Terms

    a(0) =3a(1) =12a(2) =33a(3) =111a(4) =374a(5) =1205a(6) =4003a(7) =13229a(8) =43561a(9) =143984a(10) =475288a(11) =1568812a(12) =5180457a(13) =17102445a(14) =56463871a(15) =186423129a(16) =615477689a(17) =2032034670a(18) =6708890695a(19) =22149713002a(20) =73128504204a(21) =241437738178a(22) =797119382220

External references