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A390607
Number of fundamentally different graceful labelings of the K_n X P_4 graph where X is graph Cartesian product.
0
1, 177, 12754, 164273
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..4.
Don Knuth, Coups de grâceful graphs.
Eric Weisstein's World of Mathematics, Graceful Labeling.
Eric Weisstein's World of Mathematics, KP Graph.
CROSSREFS
Sequence in context: A097317 A052461 A173375 * A069398 A189910 A189904
Adjacent sequences: A390604 A390605 A390606 * A390608 A390609 A390610
KEYWORD
nonn,hard,more
AUTHOR
Eric W. Weisstein, Dec 31 2025
STATUS
approved

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Last modified May 21 16:16 EDT 2026. Contains 395798 sequences.
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