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A333729
Total number of graceful labelings of the n-pan graph.
1
20, 32, 52, 120, 240, 640, 1576, 3696, 9736, 28712, 85784, 232960, 693704, 2182032, 7049008, 22514960, 74484552, 259871472
(list; graph; refs; listen; history; text; internal format)
OFFSET
3,1
LINKS
Table of n, a(n) for n=3..20.
Eric Weisstein's World of Mathematics, Graceful Labeling
Eric Weisstein's World of Mathematics, Pan Graph
Wikipedia, Graceful labeling
FORMULA
a(n) = 4*A387804(n). - Eric W. Weisstein, Sep 12 2025
CROSSREFS
Cf. A387804 (fundamentally different graceful labelings).
Sequence in context: A212050 A075035 A032352 * A183048 A124665 A134989
Adjacent sequences: A333726 A333727 A333728 * A333730 A333731 A333732
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Apr 03 2020
EXTENSIONS
a(12)-a(13) from Pontus von Brömssen, Aug 06 2020
a(14)-a(20) from Eric W. Weisstein, Sep 13 2025
STATUS
approved

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Last modified May 22 06:28 EDT 2026. Contains 395818 sequences.
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