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

A298058

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

Terms

    a(0) =0a(1) =3a(2) =0a(3) =2a(4) =6a(5) =13a(6) =22a(7) =68a(8) =132a(9) =323a(10) =790a(11) =1724a(12) =4158a(13) =10007a(14) =22770a(15) =54346a(16) =129582a(17) =301431a(18) =715256a(19) =1697866a(20) =3987490a(21) =9441255a(22) =22363356a(23) =52732570a(24) =124755460a(25) =295222595a(26) =697290424a(27) =1649165304a(28) =3900971604a(29) =9220090253

External references