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 A234805 #10 Jan 28 2015 12:35:50 %S A234805 85865,193997,245986,276125,283519,297624,298486,311014,324550,326735, %T A234805 342567,346060,348353,350475,364132,371213,373568,376125,383297, %U A234805 412928,413942,421142,423280,425350,445146,450413,463344,463538,465666,468824,469554,469612,470257,476538,480942,491132,492647,493942,497448,499444,502879,507119,509870,509996,511026,511065,513096,541068,543035,546712,549211,550367,551174,551413,551475,552888,556847,558843,560783,563429,564865,568352,570574,572556 %N A234805 Positions of 4's in A234323. %Y A234805 Cf. A234323, A234800, A234802, A234803, A234804, A234806, A234807. %K A234805 nonn %O A234805 1,1 %A A234805 _Simon Plouffe_ and _Robert G. Wilson v_, Dec 30 2013