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A039953
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Triangle of "canonical" optimal Golomb rulers.
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3
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1, 1, 2, 1, 3, 2, 1, 3, 5, 2, 1, 3, 6, 2, 5, 1, 3, 6, 8, 5, 2, 1, 3, 5, 6, 7, 10, 2, 1, 4, 7, 13, 2, 8, 6, 3, 1, 5, 4, 13, 3, 8, 7, 12, 2, 1, 3, 9, 15, 5, 14, 7, 10, 6, 2, 2, 4, 18, 5, 11, 3, 12, 13, 7, 1, 9, 2, 3, 20, 12, 6, 16, 11, 15, 4, 9, 1, 7
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OFFSET
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1,3
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COMMENTS
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REFERENCES
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CRC Handbook of Combinatorial Designs, 1996, p. 315.
A. Kotzig and P. J. Laufer, Sum triangles of natural numbers having minimum top, Ars. Combin. 21 (1986), 5-13.
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LINKS
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EXAMPLE
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Triangle begins:
1;
1, 2;
1, 3, 2;
1, 3, 5, 2;
1, 3, 6, 2, 5;
1, 3, 6, 8, 5, 2;
...
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CROSSREFS
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These all start at 1. For rulers starting at 0, see A079283, A079287, A079423, A079425, A079426, A079430, A079433, A079434, A079435, A079454 and A079467, A079604, A079605, A079606, A079607, A079608, A079625, A079634.
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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