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A206416
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Achromatic number of K_4 X K_n.
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1
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4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 24, 26, 28, 29, 30, 32, 33, 34, 36, 37, 38, 40
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OFFSET
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1,1
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REFERENCES
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Hornak, Mirko and Puntigan, Jozef, On the achromatic number of K_m X K_n. In Graphs and other combinatorial topics (Prague, 1982), 118-123, Teubner-Texte Math., 59, Teubner, Leipzig, 1983.
Hornak, Mirko and Pcola, Stefan, Achromatic number of K_5 X K_n for small n. Czechoslovak Math. J. 53 (128) (2003), no. 4, 963-988.
Hornak, Mirko and Pcola, Stefan, Achromatic number of K_5 X K_n for large n. Discrete Math. 234 (2001), no. 1-3, 159-169.
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LINKS
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FORMULA
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For n >= 25, a(n) = floor(5n/3).
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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