Number of polyhexes with n cells that tile the plane isohedrally but not by translation or by 180-degree rotation (Conway criterion).
A075213
Number of polyhexes with n cells that tile the plane isohedrally but not by translation or by 180-degree rotation (Conway criterion).
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =33a(7) =88a(8) =611a(9) =1803a(10) =2985a(11) =21250a(12) =23564a(13) =100221a(14) =392655a(15) =438188a(16) =433150a(17) =4762862a(18) =2327445a(19) =18839643a(20) =46717154
External references
- oeis: A075213