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A100542 Two-color Rado numbers R(0,n). 0
5, 1, 9, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630, 666, 703, 741, 780, 820, 861, 903, 946, 990, 1035, 1081, 1128, 1176, 1225, 1275, 1326, 1378, 1431, 1485, 1540, 1596 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

S. Burr, S. Loo and D. Schaal, On Rado numbers, I, preprint.

S. Jones and D. Schaal, Two-color Rado numbers for x + y + z = kz, Discr. Math., 289 (2004), 63-69.

FORMULA

After the third term these are simply triangular numbers.

CROSSREFS

Sequence in context: A147406 A147354 A134233 * A147404 A146070 A040029

Adjacent sequences:  A100539 A100540 A100541 * A100543 A100544 A100545

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Dec 31 2004

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Last modified February 14 15:39 EST 2012. Contains 205635 sequences.