Number of free poly-IH16-tiles (holes allowed) with n cells.
A213951
Number of free poly-IH16-tiles (holes allowed) with n cells.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =24a(4) =98a(5) =418a(6) =1846a(7) =8378a(8) =38776a(9) =181482a(10) =858387a(11) =4091814a(12) =19635210a(13) =94749398
External references
- oeis: A213951