A259882 Number of graphs with n edges having a proper labeling that is bilaterally symmetric and satisfies condition (4.1) of Sheppard (1976).

0, 2, 2, 6, 4, 22, 14, 102, 62

Offset: 1

Author

N. J. A. Sloane, Jul 10 2015

Keywords

• nonn
• more

Links

• David A. Sheppard, The factorial representation of major balanced labelled graphs, Discrete Math., 15(1976), no. 4, 379-388. See Table 1.

Crossrefs

Cf. A005193, A005194.