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 A090160 #7 Aug 02 2021 01:19:28 %S A090160 5,11,103,71,661,329891,75024347,3790360487,1713311273363831, %T A090160 117876683047,765041185860961084291,38681321803817920159601, %U A090160 237649652991517758152033,10513391193507374500051862069,4379593820587205958191075783529691,37280713718589679646221 %N A090160 Greater prime factor of semiprimes in A090159. %Y A090160 Cf. A038507, A078778, A082952, A090159. %K A090160 nonn %O A090160 1,1 %A A090160 _Ray Chandler_, Nov 22 2003 %E A090160 Offset changed to 1 and more terms from _Jinyuan Wang_, Aug 01 2021