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 A046862 #12 Apr 29 2021 20:10:56 %S A046862 1,13,23,61,83,97,217,253,277,287,301,347,359,407,433,793,983,1021, %T A046862 1043,1079,1093,1177,1199,1367,1499,1607,1859,1979,4081,4093,4213, %U A046862 4307,4381,4439,5063,5387,5447,5521,5999,7321,7441,7477,12397,13847,15899 %N A046862 Upper members of a "good pair" of the form (k, 2*k +- 1). %H A046862 N. G. de Bruijn, <a href="http://dx.doi.org/10.1090/S0025-5718-1964-0167447-9">Some direct decompositions of the set of integers</a>, Math. Comp., 18 (1964), 537-546. %Y A046862 Cf. A046861, A000696. %K A046862 nonn,easy,nice %O A046862 1,2 %A A046862 _N. J. A. Sloane_ %E A046862 Reference gives 45 terms. %E A046862 More terms from Pab Ter (pabrlos2(AT)yahoo.com), Nov 06 2005 %E A046862 Offset corrected and title improved by _Sean A. Irvine_, Apr 29 2021