Number of connected labeled 5-colorable (i.e., chromatic number <= 5) graphs on n nodes.

A084285

Number of connected labeled 5-colorable (i.e., chromatic number <= 5) graphs on n nodes.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =38a(4) =728a(5) =26703a(6) =1865842a(7) =251349147a(8) =66151135747

External references