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 A106683 Triangle read by rows: row n gives marks on lexicographically earliest n-mark optimal Golomb ruler. 4
 0, 0, 1, 0, 1, 3, 0, 1, 4, 6, 0, 1, 4, 9, 11, 0, 1, 4, 10, 12, 17, 0, 1, 4, 10, 18, 23, 25, 0, 1, 4, 9, 15, 22, 32, 34, 0, 1, 5, 12, 25, 27, 35, 41, 44, 0, 1, 6, 10, 23, 26, 34, 41, 53, 55, 0, 1, 4, 13, 28, 33, 47, 54, 64, 70, 72, 0, 2, 6, 24, 29, 40, 43, 55, 68, 75, 76, 85, 0, 2, 5, 25, 37, 43, 59, 70, 85, 89, 98, 99, 106 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,6 COMMENTS Golomb ruler: Finite set with property that no difference between any two numbers is repeated and largest number is minimized. See A003022 for further information and additional references. LINKS Andrey Zabolotskiy, Rows 1..27, flattened J. B. Shearer, Golomb ruler table J. B. Shearer, Table of Known Optimal Golomb Rulers Eric Weisstein's World of Mathematics, Golomb rulers. Wikipedia, Golomb ruler EXAMPLE Triangle begins:   0;   0, 1;   0, 1, 3;   0, 1, 4,  6;   0, 1, 4,  9, 11;   0, 1, 4, 10, 12, 17;             A079283   0, 1, 4, 10, 18, 23, 25;         A079287   0, 1, 4,  9, 15, 22, 32, 34;     A079423   0, 1, 5, 12, 25, 27, 35, 41, 44; A079425   ... CROSSREFS Cf. A039953. Cf. A079283, A079287, A079423, A079426, A079430, A079433, A079434. Sequence in context: A124323 A250104 A220421 * A139601 A213191 A079520 Adjacent sequences:  A106680 A106681 A106682 * A106684 A106685 A106686 KEYWORD nonn,tabl AUTHOR N. J. A. Sloane, Jun 04 2006 EXTENSIONS Corrected by Andrey Zabolotskiy, Aug 22 2017 STATUS approved

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Last modified July 23 11:44 EDT 2019. Contains 325254 sequences. (Running on oeis4.)