OFFSET
0,7
LINKS
Sean A. Irvine, Table of n, a(n) for n = 0..100
Sean A. Irvine, Java program (github)
EXAMPLE
a(1)=a(2)=0 since Eulerian graphs having 1 or 2 edges are not simple. The triangle is the unique Eulerian graph having 3 edges and no isolated vertices, thus showing a(3)=1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Roland Bacher, Apr 23 2002
STATUS
approved