Number of (n+1) X 3 binary arrays with each element of every 2 X 2 subblock being the sum mod 2 of two others.

A183838

Number of (n+1) X 3 binary arrays with each element of every 2 X 2 subblock being the sum mod 2 of two others.

Terms

    a(0) =31a(1) =129a(2) =542a(3) =2297a(4) =9747a(5) =41430a(6) =176119a(7) =748937a(8) =3184790a(9) =13544009a(10) =57598363a(11) =244951310a(12) =1041712935a(13) =4430144161a(14) =18840275454a(15) =80122960441a(16) =340742738947

External references