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 A317473 #5 Jul 31 2018 10:09:42 %S A317473 2845,3060,3072,3082,3270,3284,3288,3290,3293,3303,3307,3308,3328, %T A317473 3463,3469,3470,3471,3472,3515,3518,3519,3521,3522,3526,3527,3537, %U A317473 3540,3541,3542,3552,3564,3640,3645,3708,3709,3715,3720,3722,3730 %N A317473 Numbers missing from A317471. %C A317473 A317471 is finite, so this sequence is infinite. %C A317473 See A317471 for further information. %H A317473 Daniël Karssen, <a href="/A317473/b317473.txt">Table of n, a(n) for n = 1..42346</a> %Y A317473 Cf. A317471. %K A317473 nonn %O A317473 1,1 %A A317473 _Daniël Karssen_, Jul 29 2018