Number of nX3 0..1 arrays with every element equal to 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A298897

Number of nX3 0..1 arrays with every element equal to 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =7a(6) =12a(7) =25a(8) =47a(9) =96a(10) =187a(11) =377a(12) =746a(13) =1497a(14) =2981a(15) =5970a(16) =11919a(17) =23851a(18) =47668a(19) =95357a(20) =190659a(21) =381352a(22) =762615a(23) =1525285a(24) =3050426a(25) =6100941a(26) =12201649a(27) =24403442a(28) =48806507a(29) =97613247

External references