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 A258641 #9 Oct 01 2015 04:07:55 %S A258641 12,8,36,16,8,12,40,8,36,36,12,28,8,72,60,24,108,60,60,48,60,60,24,76, %T A258641 8,72,12,48,40,8,12,120,72,88,20,60,60,60,60,84,36,12,72,156,60,72,60, %U A258641 48,12,60,48,288,12,60,252,168,12,120,60,88,8,12,60,12 %N A258641 First differences of A103739. %C A258641 All terms are divisible by 4. Minimal value is 8. %F A258641 a(n) = A103739(n+1) - A103739(n). %Y A258641 Cf. A103739. %K A258641 nonn %O A258641 1,1 %A A258641 _Zak Seidov_, Jun 06 2015