Number of (n+1) X (6+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nonincreasing.
A263797
Number of (n+1) X (6+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nonincreasing.
Terms
- a(0) =4a(1) =4a(2) =14a(3) =18a(4) =130a(5) =616a(6) =4991a(7) =30130a(8) =185795a(9) =1022105a(10) =5241463a(11) =25403916a(12) =113461481a(13) =487306269a(14) =1945016957a(15) =7506601812a(16) =27247184895a(17) =95846215581a(18) =320539609724
External references
- oeis: A263797