Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A299453

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =7a(2) =7a(3) =19a(4) =35a(5) =95a(6) =223a(7) =571a(8) =1535a(9) =4091a(10) =11247a(11) =31195a(12) =86931a(13) =244295a(14) =688227a(15) =1944479a(16) =5504723a(17) =15600559a(18) =44253807a(19) =125605043a(20) =356642407a(21) =1012929987a(22) =2877423319a(23) =8174903459a(24) =23227280955a(25) =65999249359a(26) =187541203227a(27) =532924811479

External references