%I #6 May 14 2016 15:35:28

%S 1,2,3,7,13,13,17,29,31,61,61,61,61,61,61,61,61,109,109,109,109,109,

%T 109,109,109,128,128,128,128,128,128,128,128,256,256,256,256,256,256,

%U 256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,256,512,512,512,512,512

%N Discriminator of Sylvester's sequence A000058.

%C The discriminator of a sequence is the least positive integer k such that the first n terms of the sequence are pairwise incongruent, modulo k.

%Y Cf. A000058.

%K nonn

%O 1,2

%A _Jeffrey Shallit_, May 14 2016