Number of nX5 0..1 arrays with every element equal to 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A298954

Number of nX5 0..1 arrays with every element equal to 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =3a(2) =3a(3) =6a(4) =10a(5) =22a(6) =47a(7) =143a(8) =418a(9) =1449a(10) =4821a(11) =17127a(12) =59477a(13) =211515a(14) =744552a(15) =2643659a(16) =9347408a(17) =33151822a(18) =117393355a(19) =416155667a(20) =1474364490a(21) =5225593450a(22) =18516679195a(23) =65623399116a(24) =232549566847a(25) =824133935862

External references