A010895 Minimal scope of a (2,n) difference triangle.

2, 7, 13, 22, 34, 51, 70, 94, 121, 153

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• hard

References

• CRC Handbook of Combinatorial Designs, 1996, p. 315.
• CRC Handbook of Combinatorial Designs, Second Edition, 2007, par. 19.37.

Links

• 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.

Extensions

a(10) from Andrey Zabolotskiy, Aug 22 2017