A039953 - OEIS

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A039953

Triangle of "canonical" optimal Golomb rulers.

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

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

n-th row gives first differences of the (n+1)-th row of A106683. - Andrey Zabolotskiy, Aug 22 2017

REFERENCES

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.

LINKS

Table of n, a(n) for n=1..78.

Distributed.Net, Project OGR

L. Miller, Golomb Rulers