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 A189829 #7 Mar 30 2012 17:22:58 %S A189829 3,5,7,8,10,11,12,14,16,20,22,24,26,28,32,34,36,38,44,46,48,52,56,58, %T A189829 60,68,72,76,78,80,84,88,92,96,98,100,104,106,108,116,124,128,136,148, %U A189829 156,160,168,172,174,176,184,196,200,208,224,236,248,260,268 %N A189829 Record values of d(n-1) + d(n+1), where d(k) is the number of divisors of k. %C A189829 The n are in A189828. %H A189829 Donovan Johnson, <a href="/A189829/b189829.txt">Table of n, a(n) for n = 1..135</a> %Y A189829 Cf. A189827, A189828. %K A189829 nonn %O A189829 1,1 %A A189829 _T. D. Noe_, Apr 28 2011