1,5
Table of n, a(n) for n=1..9.
Eric Weisstein's World of Mathematics, Antelope Graph
Eric Weisstein's World of Mathematics, Maximal Independent Vertex Set
Sequence in context: A060616 A297387 A016936 * A013721 A337025 A053859
Adjacent sequences: A321239 A321240 A321241 * A321243 A321244 A321245
nonn,more
Eric W. Weisstein, Nov 01 2018
approved