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 A028689 #8 Nov 07 2018 15:12:34 %S A028689 1,2,6,20,24,42,110,156,272,342,432,506,812,930,1332,1344,1640,1806, %T A028689 2162,2756,3422,3660,4422,4970,5256,6162,6806,7832,9312,10100,10506, %U A028689 11342,11772,12000,12656,16002,17030,18632,19182,22052,22650,24492 %N A028689 Sorted Galois numbers. %H A028689 Alois P. Heinz, <a href="/A028689/b028689.txt">Table of n, a(n) for n = 1..10000</a> %Y A028689 Cf. A028665, ..., A028691. %K A028689 nonn %O A028689 1,2 %A A028689 _Olivier Gérard_ %E A028689 Offset set to 1 by _Alois P. Heinz_, Nov 07 2018