Number of 3Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.

A297683

Number of 3Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.

Terms

    a(0) =8a(1) =33a(2) =150a(3) =629a(4) =2790a(5) =12110a(6) =52889a(7) =230406a(8) =1005170a(9) =4382278a(10) =19110183a(11) =83327912a(12) =363357551a(13) =1584416863a(14) =6908888883a(15) =30126285845a(16) =131366174343a(17) =572824066436

External references