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 A065838 #4 Oct 25 2019 20:00:53 %S A065838 3,13,53,214,859,3439,13758,55035,220142,880571,3522287,14089151, %T A065838 56356606,225426424,901705698,3606822793,14427291173,57709164695, %U A065838 230836658783,923346635133,3693386540532,14773546162130,59094184648520 %N A065838 A065837 converted to base 10. %Y A065838 Cf. A065828 up to A065840, A000796, A011545, A011546, A055145. %K A065838 nonn,base %O A065838 1,1 %A A065838 _Patrick De Geest_, Nov 24 2001