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A333727 Total number of graceful labelings of all simple graphs on n nodes. 0
1, 2, 16, 144, 1428, 25328, 631026, 25087224 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Graceful Labeling
Eric Weisstein's World of Mathematics, Simple Graph
CROSSREFS
Sequence in context: A003768 A214767 A300412 * A024915 A162440 A337793
KEYWORD
nonn,more,hard
AUTHOR
Eric W. Weisstein, Apr 03 2020
EXTENSIONS
a(8) from Eric W. Weisstein, Jul 30 2020
STATUS
approved

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Last modified April 12 11:16 EDT 2024. Contains 371633 sequences. (Running on oeis4.)