OFFSET
0,2
COMMENTS
The discriminator of a finite sequence s is the smallest positive integer d such that all the elements of s are incongruent modulo d. The sequence in question is the discriminator of the first n powers of 2.
LINKS
Zhi-Wei Sun, On functions taking only prime values, J. Number Theory 133(2013), no.8, 2794-2812.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jeffrey Shallit, Mar 11 2016
STATUS
approved