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 A027920 #10 Dec 11 2019 05:21:46
%S A027920 3,6,10,15,20,26,33,40,49,58,68,78,90,102,115,129,143,158,174,191,208,
%T A027920 227,246,265,286,307,329,352,376,400,425,451,477,505,533,562,591,622,
%U A027920 653,685,717,751,785,820,856,892,929,967,1006,1046,1086,1127,1169,1211
%N A027920 Least k such that 2nd elementary symmetric function of {1,2,...,k} >= 4th elementary symmetric function of {1,2,...,n}.
%F A027920 a(n) = min{k: A000914(k) >= A000915(n-3)}. - _Sean A. Irvine_, Dec 10 2019
%Y A027920 Cf. A000914, A000915.
%K A027920 nonn
%O A027920 4,1
%A A027920 _Clark Kimberling_
%E A027920 More terms from _Sean A. Irvine_, Dec 10 2019