numbers of the form 1763k+r
consider numbers of the form
1763k+r with r=903, 215, 344, 387, 1677
let's call these numbers S
what percentage of these numbers are congruent to + or  (2^j1)^3+1 mod 13 with j integer >=0?
And can you find a list of these numbers?
Last fiddled with by enzocreti on 20200131 at 14:47
