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 A027917 #9 Sep 23 2016 06:24:29
%S A027917 3,10,21,38,63,95,137,191,256,334,427,535,661,805,968,1151,1357,1585,
%T A027917 1838,2117,2422,2755,3117,3510,3934,4392,4883,5409,5973,6574,7213,
%U A027917 7894,8615,9379,10187,11041,11940,12887,13883,14929,16026,17176,18379,19637,20952,22323,23754,25244,26795,28408
%N A027917 a(n) = least k such that 1+2+...+k >= E{1,2,...,n}, where E is the 3rd elementary symmetric function.
%F A027917 a(n) = min{k: A000217(k) >= A001303(n-2)}. - _R. J. Mathar_, Sep 23 2016
%K A027917 nonn
%O A027917 3,1
%A A027917 _Clark Kimberling_