Number of rooted 2-dimensional polyominoes with n hexagonal cells, with no symmetries removed.
A094165
Number of rooted 2-dimensional polyominoes with n hexagonal cells, with no symmetries removed.
Terms
- a(0) =1a(1) =6a(2) =33a(3) =176a(4) =930a(5) =4884a(6) =25564a(7) =133512a(8) =696231a(9) =3626710a(10) =18876363a(11) =98186556a(12) =510472118a(13) =2652899130a(14) =13782560610a(15) =71585293504a(16) =371724613716
External references
- oeis: A094165