Number of nX3 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

A300084

Number of nX3 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =4a(2) =1a(3) =4a(4) =10a(5) =6a(6) =19a(7) =41a(8) =32a(9) =106a(10) =177a(11) =204a(12) =567a(13) =854a(14) =1301a(15) =3067a(16) =4579a(17) =8193a(18) =16931a(19) =26544a(20) =50620a(21) =96460a(22) =160794a(23) =309917a(24) =567494a(25) =993732a(26) =1895366a(27) =3426279a(28) =6187957a(29) =11638394

External references