EntityQ3115489· pop 8· linked from 9 articlesFolkman graphSign in to savegraph with 20 vertices and 40 edges, the smallest semi-symmetric graphConnectionsHamiltonian pathEntitymathematicsEntityInternational Standard Book NumberEntitydigital object identifierEntitygraph theoryEntityQ118398Entitymodular arithmeticEntityoctahedronEntityMathWorldEntitycomplete graphEntityQ22908627EntitynodeEntitygraph coloringEntitybipartite graphEntitycounterexampleEntityEulerian pathEntitycharacteristic polynomialEntityregular graphEntityEric W. WeissteinEntityHandle SystemEntityCategoriesIndividual graphsRegular graphs