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

A304343

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

Terms

    a(0) =8a(1) =28a(2) =71a(3) =290a(4) =1266a(5) =4733a(6) =18855a(7) =76887a(8) =308978a(9) =1246767a(10) =5062234a(11) =20532276a(12) =83375626a(13) =339110674a(14) =1379336250a(15) =5613495282a(16) =22857004715a(17) =93078076884a(18) =379120762123

External references