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 A350099 #16 Mar 01 2024 01:46:07 %S A350099 21,33,111,287,2391,6583,8843,13733,15293,21619,36019,66961,113053, %T A350099 340941,783809,872279,3058917,3586913,5835265,12345557,108994713, %U A350099 248707009,268749791,679956221,709239737,3648864977,3790337843,4171420613,33955869829,34279038517,34840796509 %N A350099 a(n) is the upper end of a record gap A349995(n) between consecutive odd squarefree semiprimes (A046388). %H A350099 Lucas A. Brown, <a href="/A350099/b350099.txt">Table of n, a(n) for n = 1..41</a> (first 34 terms from Hugo Pfoertner) %H A350099 Lucas A. Brown, <a href="https://github.com/lucasaugustus/oeis/blob/main/A349995.py">Python program</a>. %F A350099 a(n) = A350098(n) + A349995(n). %e A350099 See A349995. %Y A350099 Cf. A046388, A085809, A114057, A341828, A349995, A350098. %K A350099 nonn %O A350099 1,1 %A A350099 _Hugo Pfoertner_, Dec 26 2021