Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A299875

Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =29a(2) =41a(3) =125a(4) =585a(5) =1974a(6) =6542a(7) =24545a(8) =89192a(9) =314259a(10) =1128245a(11) =4079503a(12) =14634597a(13) =52444291a(14) =188594973a(15) =678001937a(16) =2434026544a(17) =8742984292a(18) =31418755932a(19) =112865079546a(20) =405419489351

External references