Number of perfectly orderable perfect graphs on n nodes.
A123447
Number of perfectly orderable perfect graphs on n nodes.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =11a(4) =33a(5) =147a(6) =896a(7) =8682a(8) =131299a(9) =3062755
External references
- oeis: A123447