Number of nX3 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A299881
Number of nX3 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =3a(1) =4a(2) =10a(3) =28a(4) =44a(5) =222a(6) =573a(7) =1551a(8) =5437a(9) =15427a(10) =46610a(11) =147825a(12) =440906a(13) =1355665a(14) =4185876a(15) =12728958a(16) =39141678a(17) =120148173a(18) =367673251a(19) =1129038626a(20) =3462538638a(21) =10614970449a(22) =32572123774a(23) =99893671708a(24) =306375998766a(25) =939858679672
External references
- oeis: A299881