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 A118144 #8 Jul 29 2012 11:32:58 %S A118144 0,0,1,0,2,2,2,2,1,3,2,2,2,2,1,1,2,2,3,2,1,3,2,4,2,3,3,3,3,3,2,3,4,2, %T A118144 3,2,1,2,2,1,2,3,4,4,3,2,1,2,4,4,1,2 %N A118144 Numbers of prime factors of l, where l is defined in A118534. %C A118144 a(n) = 0 only for n = 1, 2 and 4. %H A118144 Remi Eismann, <a href="/A118144/b118144.txt">Table of n, a(n) for n = 1..10000</a> %F A118144 a(n) = numbers of factors of l, largest l such that prime(n+1) = prime(n) + (prime(n) mod l), or 0 if no such l exists. %e A118144 For a(1), l=0 thus a(1)=0, %e A118144 for a(3), l=3 thus a(3)=1, %e A118144 for a(8), l=15=3*5 thus a(8)=2, %e A118144 for a(24), l=81=3*3*3*3 thus a(24)=4. %Y A118144 Cf. A118534, A117563, A118123, A117078. %K A118144 nonn %O A118144 1,5 %A A118144 _Rémi Eismann_ and _Fabien Sibenaler_, May 14 2006, Feb 14 2008