Number of n X 3 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly one element.

A283198

Number of n X 3 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly one element.

Terms

    a(0) =0a(1) =6a(2) =83a(3) =868a(4) =7899a(5) =66412a(6) =535025a(7) =4184880a(8) =32026556a(9) =241090458a(10) =1791592450a(11) =13175736396a(12) =96069953412a(13) =695476880430

External references