Number of nX4 0..1 arrays with every element equal to 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A298179

Number of nX4 0..1 arrays with every element equal to 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =2a(2) =2a(3) =3a(4) =6a(5) =10a(6) =15a(7) =26a(8) =44a(9) =71a(10) =118a(11) =198a(12) =327a(13) =542a(14) =904a(15) =1503a(16) =2498a(17) =4162a(18) =6935a(19) =11554a(20) =19268a(21) =32151a(22) =53662a(23) =89614a(24) =149735a(25) =250294a(26) =418576a(27) =700335a(28) =1172266a(29) =1963050

External references