Number of nX5 0..1 arrays with every element unequal to 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

A317899

Number of nX5 0..1 arrays with every element unequal to 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =4a(2) =2a(3) =31a(4) =29a(5) =75a(6) =315a(7) =708a(8) =1978a(9) =4962a(10) =13865a(11) =38184a(12) =101161a(13) =277625a(14) =735028a(15) =2021158a(16) =5400624a(17) =14720342a(18) =39564863a(19) =107260441a(20) =289679573a(21) =782878461a(22) =2118368915a(23) =5719199275a(24) =15480779502a(25) =41801779217a(26) =113104257456a(27) =305561736347

External references