Number of n X 4 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A298926

Number of n X 4 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =2a(2) =4a(3) =11a(4) =23a(5) =72a(6) =201a(7) =597a(8) =1717a(9) =5183a(10) =15479a(11) =46260a(12) =138928a(13) =417427a(14) =1255369a(15) =3777004a(16) =11372190a(17) =34247960a(18) =103164581a(19) =310821235a(20) =936579808a(21) =2822417917a(22) =8506019597a(23) =25636254701a(24) =77267796877a(25) =232891865309a(26) =701970354408

External references