Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

A305485

Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =33a(2) =27a(3) =65a(4) =195a(5) =125a(6) =268a(7) =1176a(8) =805a(9) =1681a(10) =7276a(11) =5844a(12) =10771a(13) =45897a(14) =42168a(15) =71400a(16) =291373a(17) =302289a(18) =481228a(19) =1860822a(20) =2143789a(21) =3279467a(22) =11940222a(23) =15053714a(24) =22494177a(25) =76946183a(26) =104796222a(27) =154849698a(28) =497855289a(29) =724251391

External references