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A182131 Largest group of fireflies on a 15 X 15 board for which no pair ever converges. 0
0, 4, 6, 8, 11, 13, 17, 21, 24, 27, 31, 37, 41, 46, 51 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
I have only seen the answer, not the question, so the details of the problem are not clear to me.
LINKS
Ian Stewart, The Synchronicity of Firefly Flashing, Scientific American, Vol. 280, No. 3, March 1999, pp. 104-106.
Ian Stewart, Mathematical Recreations Column, Scientific American, Vol. 282, No. 4, April 2000, p. 113. (Reader Feedback, reporting on results obtained by Cindy Eisner of Zichron Yaacov, Israel, answering a question raised in the March 1999 column on "The Synchronicity of Firefly Flashing").
CROSSREFS
Sequence in context: A086377 A003662 A132635 * A298868 A134779 A226250
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Apr 14 2012
STATUS
approved

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Last modified July 25 03:25 EDT 2024. Contains 374586 sequences. (Running on oeis4.)