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 A362966 #17 Oct 12 2024 09:02:14 %S A362966 1,121487,293957,13449179,549999887 %N A362966 Numbers k such that A007908(k) == 1 (mod k). %C A362966 a(6) > 10^11. - _Jason Yuen_, Oct 12 2024 %o A362966 (Python) # See A029455 for concat_mod %o A362966 def isok(k): return concat_mod(10, k, k)==1%k # _Jason Yuen_, Oct 12 2024 %Y A362966 Cf. A007908, A029455, A029479, A110740. %K A362966 nonn,base,hard,more %O A362966 1,2 %A A362966 _Max Alekseyev_, Jun 06 2023