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

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

Offset

1,1

References

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

CRC Handbook of Combinatorial Designs, Second Edition, 2007, par. 19.37.

Links

Table of n, a(n) for n=1..10.

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: A184428 A262523 A360135 * A045376 A185724 A366983

Adjacent sequences: A010892 A010893 A010894 * A010896 A010897 A010898

Keyword

nonn,hard

Author

N. J. A. Sloane

Extensions

a(10) from Andrey Zabolotskiy, Aug 22 2017

Status

approved