Number of (n+3)X(n+3) binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.

A188096

Number of (n+3)X(n+3) binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.

Terms

    a(0) =65536a(1) =143a(2) =486a(3) =3341a(4) =7661a(5) =10229a(6) =11457a(7) =14853a(8) =20945a(9) =30013a(10) =43553a(11) =66581a(12) =122537a(13) =218493a(14) =370901a(15) =609169a(16) =1038233a(17) =1702125a(18) =2718785a(19) =4301573a(20) =7084265a(21) =11655845a(22) =19057721a(23) =31019025a(24) =51454089a(25) =85171709a(26) =139887197a(27) =228134173

External references