Number of free poly-IH7-tiles (holes allowed) with n cells.
A212416
Number of free poly-IH7-tiles (holes allowed) with n cells.
Terms
- a(0) =1a(1) =3a(2) =13a(3) =44a(4) =186a(5) =820a(6) =3652a(7) =16689a(8) =77383a(9) =362671a(10) =1716033a(11) =8182315a(12) =39267086a(13) =189492795
External references
- oeis: A212416