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 A261410 #13 Aug 27 2015 11:36:50 %S A261410 -7,12,17,20,22,24,25,29,30,33,34,37,38,40,41,44,46,48,49,50,52,53,54, %T A261410 56,58,60,61,62,64,65,66,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82, %U A261410 83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100 %N A261410 Curvatures in a certain orthoplicial Apollonian sphere packing. %C A261410 The sequence begins: %C A261410 -7, 12, 17, 20, 22, 24, 25, 29, 30, 33, 34, 37, 38, 40, 41, 44, 46, %C A261410 48, 49, 50, 52, 53, 54, 56, 58, 60, 61, 62, 64, 65, 66, 68, 69, ..., %C A261410 200, 201, 202, 204, 205, 206, 208, 209, 210, 212, 213, 214, 216, %C A261410 217, 218, 220, 221, 222, 224, 225, 226, 228, 229, 230, 232, 233, %C A261410 234, 236, 237, 238, 240, 241, 242, 244, 245, 246, 248, 249, ... %H A261410 Dimitri Dias, <a href="http://arxiv.org/abs/1401.4789">The local-global principle for integral generalized Apollonian sphere packings</a>, arXiv:1401.4789, 2014. %H A261410 Kei Nakamura, <a href="http://arxiv.org/abs/1401.2980">The local-global principle for integral bends in orthoplicial Apollonian sphere packings</a>, arXiv:1401.2980, 2014. %Y A261410 Cf. A261409. %K A261410 sign %O A261410 1,1 %A A261410 _N. J. A. Sloane_, Aug 23 2015