Number of nX6 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 1 1 vertically.
A207680
Number of nX6 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 1 1 vertically.
Terms
- a(0) =19a(1) =361a(2) =702a(3) =2132a(4) =5704a(5) =11994a(6) =25076a(7) =52632a(8) =109811a(9) =215506a(10) =431270a(11) =856818a(12) =1671738a(13) =3290063a(14) =6359426a(15) =12365486a(16) =23939738a(17) =45966515a(18) =88735852a(19) =170028536a(20) =325975917a(21) =624553353a(22) =1192281784a(23) =2279867642a(24) =4348061061a(25) =8290055552
External references
- oeis: A207680