Number of connected 4-colorable (i.e., chromatic number <= 4) simple graphs on n nodes.
A076323
Number of connected 4-colorable (i.e., chromatic number <= 4) simple graphs on n nodes.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =107a(6) =801a(7) =10227a(8) =231228a(9) =9708788a(10) =743177051a(11) =100580560531
External references
- oeis: A076323