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 A144175 #21 Aug 06 2014 16:14:23 %S A144175 7,18,28,38,48,58,68,78,80,81,82,83,84,85,86,87,88,108,119,129,139, %T A144175 149,159,169,179,189,190,191,192,193,194,195,196,197,198,199,208,218, %U A144175 229,239,249,259,269,279,289,290,291,292,293,294,295,296,297 %N A144175 Numbers of rank 2 in the poset of lunar numbers. %H A144175 David Applegate and N. J. A. Sloane, <a href="/A144175/b144175.txt">Table of n, a(n) for n = 1..23290</a> %H A144175 D. Applegate, M. LeBrun and N. J. A. Sloane, <a href="http://arxiv.org/abs/1107.1130">Dismal Arithmetic</a> [Note: we have now changed the name from "dismal arithmetic" to "lunar arithmetic" - the old name was too depressing] %H A144175 <a href="/index/Di#dismal">Index entries for sequences related to dismal (or lunar) arithmetic</a> %Y A144175 Cf. A087097, A133626, A161813, A144171, A144175, A171786, A171787, A171788, A171789, A171794, A171795, A171796, A191752, A191753. %K A144175 nonn,base %O A144175 1,1 %A A144175 _David Applegate_, _Marc LeBrun_ and _N. J. A. Sloane_, Aug 25 2010, corrected Oct 14 2010