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

A316214

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

Terms

    a(0) =8a(1) =28a(2) =75a(3) =310a(4) =1468a(5) =5883a(6) =25093a(7) =108869a(8) =463940a(9) =1986171a(10) =8536518a(11) =36607272a(12) =157097926a(13) =674669588a(14) =2896563138a(15) =12438785892a(16) =53424623277a(17) =229451570948a(18) =985550702393

External references