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%I #11 Dec 01 2018 06:46:04
%S 33,158,428,437,513,611,843,1016,1184,1328,1405,1472,2252,2427,2669,
%T 2763,3272,4304,4568
%N Numbers which are not prime powers but which satisfy Ko and Ray-Chaudhuri's conditions A1 and A2.
%C Arises in search for {0,1}-difference sets.
%H Hai Ping Ko, and Dijen K. Ray-Chaudhuri, <a href="https://doi.org/10.1016/0097-3165(81)90002-9">Multiplier theorems</a>, J. Combin. Theory Ser. A 30 (1981), no. 2, 134--157. MR0611247 (84k:05019).
%K nonn,more
%O 1,1
%A _N. J. A. Sloane_, May 06 2012
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