This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A325625 #6 May 13 2019 08:12:41
%S A325625 1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,
%T A325625 1,1,1,1,3,1,1,1,1,1,2,1,1,2,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,
%U A325625 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1
%N A325625 Sorted prime signature of 2^n - 1.
%C A325625 The sorted prime signature of n is row n of A124010.
%e A325625 We have 2^126 - 1 = 3^3 * 7^2 * 19 * 43 * 73 * 127 * 337 * 5419 * 92737 * 649657 * 77158673929, so row n = 126 is {1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3}.
%e A325625 Triangle begins:
%e A325625 1
%e A325625 1
%e A325625 1
%e A325625 1 1
%e A325625 1
%e A325625 1 2
%e A325625 1
%e A325625 1 1 1
%e A325625 1 1
%e A325625 1 1 1
%e A325625 1 1
%e A325625 1 1 1 2
%e A325625 1
%e A325625 1 1 1
%e A325625 1 1 1
%e A325625 1 1 1 1
%e A325625 1
%e A325625 1 1 1 3
%e A325625 1
%e A325625 1 1 1 1 2
%t A325625 Table[Sort[Last/@FactorInteger[2^n-1]],{n,30}]
%Y A325625 Cf. A001222, A056239, A067255, A071625, A112798, A118914, A124010.
%Y A325625 Mersenne numbers: A046051, A046800, A059305, A325610, A325611, A325612.
%K A325625 nonn,tabf
%O A325625 1,8
%A A325625 _Gus Wiseman_, May 13 2019