OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Clique number.
Eric Weisstein's World of Mathematics, Independence Number.
EXAMPLE
a(3) = 2 because, of the four graphs of order three, only the path graph and its complement have equal independence and clique number, 2 in this case.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Freddy Barrera, Jan 09 2021
STATUS
approved