OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Eulerian Cycle.
Eric Weisstein's World of Mathematics, Triangular Grid Graph.
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Dec 29 2017
EXTENSIONS
a(5)-a(9) from Andrew Howroyd, Jan 11 2018
a(10) from Andrew Howroyd, Feb 18 2024
STATUS
approved