OFFSET
1,2
COMMENTS
See A146304 for algorithm and PARI code to produce this sequence. - Andrew Howroyd, Aug 07 2017
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..100
Eric Weisstein's World of Mathematics, Black Bishop Graph
Eric Weisstein's World of Mathematics, Maximal Independent Vertex Set
Eric Weisstein's World of Mathematics, Minimal Vertex Cover
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Aug 07 2017
EXTENSIONS
Terms a(12) and beyond from Andrew Howroyd, Aug 07 2017
STATUS
approved