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A013575 Minimal scope of an (n,3) difference triangle. 1
6, 13, 19, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90 (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..15.

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: A282975 A094696 A095911 * A075727 A246306 A135274

Adjacent sequences:  A013572 A013573 A013574 * A013576 A013577 A013578

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified March 26 14:48 EDT 2019. Contains 321497 sequences. (Running on oeis4.)