Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 6 or 7 king-move adjacent elements, with upper left element zero.

A305039

Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =64a(1) =21a(2) =37a(3) =143a(4) =319a(5) =1359a(6) =7757a(7) =28535a(8) =104561a(9) =483316a(10) =2036051a(11) =7957330a(12) =33390346a(13) =141492687a(14) =577385102a(15) =2377565472a(16) =9936658069a(17) =41121426348a(18) =169582044493a(19) =703568436794

External references