Number of free pentagonal polyforms with n cells on the order-4 pentagonal tiling of the hyperbolic plane.
A330211
Number of free pentagonal polyforms with n cells on the order-4 pentagonal tiling of the hyperbolic plane.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =8a(5) =28a(6) =143a(7) =747a(8) =4346a(9) =25974a(10) =160869a(11) =1015723a(12) =6531611a(13) =42592880
External references
- oeis: A330211