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 A083799 #7 Nov 04 2015 12:37:17 %S A083799 0,2,3,8,10,18,21,32,36,60,55,72,78,98,105,240,136,162,171,200,210, %T A083799 462,253,288,300,390,351,504,406,450,465,512,528,1122,595,1260,666, %U A083799 722,741,1560,820,882,903,968,990,2070,1081,1152,1176,1400,1275,2652,1378,1458,1485,3080,1596,3306,1711,1800,1830 %N A083799 Main diagonal of A083798. %Y A083799 Cf. A083796, A083797, A083798, A083800, A083801, A083802. %K A083799 nonn %O A083799 1,2 %A A083799 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003 %E A083799 Corrected and extended by _Max Alekseyev_, Nov 04 2015