Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300768
Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =223a(2) =611a(3) =2042a(4) =7353a(5) =28397a(6) =112573a(7) =451977a(8) =1825793a(9) =7399711a(10) =30171808a(11) =123052105a(12) =502913614a(13) =2059649664a(14) =8452421368a(15) =34740533882a(16) =142943151855a(17) =588556514012
External references
- oeis: A300768