Number of free poly-IH8-tiles (holes allowed) with n cells.
A197550
Number of free poly-IH8-tiles (holes allowed) with n cells.
Terms
- a(0) =1a(1) =3a(2) =7a(3) =28a(4) =99a(5) =433a(6) =1852a(7) =8463a(8) =38798a(9) =181889a(10) =858570a(11) =4093739a(12) =19636172a(13) =94759074
External references
- oeis: A197550