OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Eulerian Cycle
Eric Weisstein's World of Mathematics, Sun Graph
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Dec 29 2017
EXTENSIONS
a(3) from Andrew Howroyd, Jan 11 2018
a(4) from Andrew Howroyd, May 22 2020
STATUS
approved