Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A302167

Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =16a(1) =21a(2) =31a(3) =73a(4) =140a(5) =296a(6) =603a(7) =1288a(8) =2584a(9) =5456a(10) =11189a(11) =23561a(12) =48423a(13) =101409a(14) =209594a(15) =438175a(16) =906900a(17) =1891425a(18) =3921725a(19) =8172996a(20) =16960434a(21) =35311533a(22) =73325262a(23) =152605472a(24) =317023164a(25) =659531459a(26) =1370465497a(27) =2850564339a(28) =5924450361

External references