OFFSET
1,4
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..87 (terms 1..40 from Georg Fischer)
Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644 [math.CO], 2014.
T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, Discr. Appl. Math. 201 (2016) 172-181.
Eric Weisstein's World of Mathematics, Connected Graph
Eric Weisstein's World of Mathematics, Cyclic Graph
Eric Weisstein's World of Mathematics, Tree
KEYWORD
nonn
AUTHOR
Travis Hoppe and Anna Petrone, Apr 29 2014
STATUS
approved