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Minimal scope of a (2,n) difference triangle.
1

%I #12 Aug 26 2017 05:08:51

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

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

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

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

%H J. B. Shearer, <a href="http://www.research.ibm.com/people/s/shearer/dtsopt.html">Difference Triangle Sets: Known optimal solutions</a>.

%H J. B. Shearer, <a href="http://www.research.ibm.com/people/s/shearer/dtslb.html">Difference Triangle Sets: Discoverers</a>

%Y A row or column of array in A234943.

%K nonn,hard

%O 1,1

%A _N. J. A. Sloane_

%E a(10) from _Andrey Zabolotskiy_, Aug 22 2017