Number of (n+2)X(n+2) binary arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

A190024

Number of (n+2)X(n+2) binary arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

Terms

    a(0) =512a(1) =45a(2) =158a(3) =458a(4) =834a(5) =1230a(6) =1910a(7) =3018a(8) =5102a(9) =9706a(10) =18522a(11) =34606a(12) =65258a(13) =119934a(14) =217210a(15) =400266a(16) =736570a(17) =1351694a(18) =2506658a(19) =4638314a(20) =8542346a(21) =15797722a(22) =29180334a(23) =53760774a(24) =99319938a(25) =183479122a(26) =338452838a(27) =625204870a(28) =1154917550a(29) =2131346658

External references