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Search: id:A100541
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| A100541 |
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Triangle of 2-color Rado numbers R(k,n), n >= 4, 1 <= k <= n-3, for the equation x + y + k = n*z, writing -1 instead of infinity. |
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+0
1
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| -1, 12, 19, -1, 14, -1, 28, 27, 23, 33, -1, 35, -1, 26, -1, 45, 44, 44, 43, 29, 51, -1, 54, -1, 53, -1, 32, -1, 66, 65, 65, 64, 64, 63, 46, 73, -1, 77, -1, 76, -1, 75, -1, 50, -1
(list; table; graph; listen)
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OFFSET
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4,2
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REFERENCES
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S. Jones and D. Schaal, Two-color Rado numbers for x + y + z = kz, Discr. Math., 289 (2004), 63-69.
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EXAMPLE
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Triangle begins:
-1
12 19
-1 14 -1
28 27 23 33
-1 35 -1 26 -1
45 44 44 43 29 51
...
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CROSSREFS
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Sequence in context: A018957 A110932 A112880 this_sequence A056688 A107911 A143800
Adjacent sequences: A100538 A100539 A100540 this_sequence A100542 A100543 A100544
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KEYWORD
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sign,tabl
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Dec 31 2004
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