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 A345975 #9 Jul 04 2021 18:04:28 %S A345975 1,7,49,3339337,143591491,6174434113,259329572083,265500666859, %T A345975 11151171599569,11416528674937,479500378781467,490910733022291, %U A345975 20139275238393697,20618516287603081,21109161519958513,865988835250928971,886596200366932483,37237519915789945753,38123636615778096769 %N A345975 a(n) = A345765(n)/1806. %K A345975 nonn %O A345975 1,2 %A A345975 _Hugo Pfoertner_, Jul 04 2021