Number of connected planar regular graphs of degree 4 with n nodes.
A072552
Number of connected planar regular graphs of degree 4 with n nodes.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =3a(6) =13a(7) =21a(8) =68a(9) =166a(10) =543a(11) =1605a(12) =5413a(13) =17735a(14) =61084a(15) =210221a(16) =736287
External references
- oeis: A072552