Number of nX7 binary arrays with every 1 having exactly three king-move neighbors equal to 1.

A183454

Number of nX7 binary arrays with every 1 having exactly three king-move neighbors equal to 1.

Terms

    a(0) =1a(1) =13a(2) =37a(3) =73a(4) =310a(5) =1077a(6) =2906a(7) =9511a(8) =32518a(9) =99333a(10) =312764a(11) =1046598a(12) =3343633a(13) =10652049a(14) =35996876a(15) =117867538a(16) =385635340a(17) =1352230379a(18) =4561605207a(19) =15531139532a(20) =57467708700a(21) =201840310959a(22) =722812200876

External references