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A308545
Number of connected graceful graphs on n edges.
0
1, 1, 3, 5, 11, 28, 79, 227, 701, 2302, 8071, 29502
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Connected Graph
Eric Weisstein's World of Mathematics, Edge Count
Eric Weisstein's World of Mathematics, Graceful Graph
EXAMPLE
1 edge: P_2
2 edges: P_3
3 edges: K_1,3 (claw), P_4, C_3
4 edges: fork graph, P_5, paw graph, C_4, S_5
CROSSREFS
Sequence in context: A265941 A372099 A333629 * A368808 A275920 A191025
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Jun 06 2019
EXTENSIONS
a(12) from Eric W. Weisstein, Jun 20 2019
STATUS
approved