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A010899 Minimal scope of a (6,n) difference triangle. 1
6, 19, 36, 60 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

CRC Handbook of Combinatorial Designs, 1996, p. 315.

LINKS

Table of n, a(n) for n=1..4.

J. B. Shearer, Difference Triangle Sets: Known optimal solutions.

J. B. Shearer, Difference Triangle Sets: Discoverers

CROSSREFS

A row or column of array in A234943.

Sequence in context: A063233 A063147 A031014 * A090381 A106398 A179986

Adjacent sequences:  A010896 A010897 A010898 * A010900 A010901 A010902

KEYWORD

nonn,hard,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 5 18:48 EDT 2020. Contains 334854 sequences. (Running on oeis4.)