OFFSET
1,5
COMMENTS
These graphs are called "median graphs" by Liskovets, but that name is more commonly used for the graphs counted in A292623. - Brendan McKay, Apr 14 2019
LINKS
V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 24 2000
EXTENSIONS
Name changed by Brendan McKay, Apr 14 2019
3 more terms by lookup in the 3 seqs of the formula. - R. J. Mathar, May 08 2019
STATUS
approved