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 A193295 #19 Feb 23 2014 02:04:51
%S A193295 1,3,2,4,2,5,3,5,3,5,2,5,3,6,3,7,2,6,3,5,3,6,3,6,5,5,4,6,2,8,3,7,4,6,
%T A193295 3,6,3,6,3,7,2,6,4,5,4,7,3,8,4,6,3,7,3,8,4,6,3,6,2,6,4,8,5,9,3,6,3,6,
%U A193295 3,8,2,7,4,5,5,6,3,8,5,7,5,6,3,6,4,6
%N A193295 Number of prime divisors (with multiplicity) of n^2 - 1.
%H A193295 T. D. Noe, <a href="/A193295/b193295.txt">Table of n, a(n) for n = 2..10000</a>
%t A193295 Table[PrimeOmega[n^2 - 1], {n, 100}] (* _Vladimir Joseph Stephan Orlovsky_, Jul 22 2011 *)
%o A193295 (PARI) a(n)=bigomega(n^2-1) \\ _Charles R Greathouse IV_, Jul 30 2011
%Y A193295 Cf. A046051, A054992, A054990, A054991, A082863.
%K A193295 nonn
%O A193295 2,2
%A A193295 _Vladimir Joseph Stephan Orlovsky_, Jul 22 2011