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 A328983 #5 Nov 07 2019 01:31:25 %S A328983 1,4,5,6,8,10,11,14,15,16,19,20,21,24,25,26,28,30,31,34,35,36,38,40, %T A328983 41,44,45,46,48,50,51,54,55,56,59,60,61,64,65,66,68,70,71,74,75,76,79, %U A328983 80,81,84,85,86,88,90,91,94,95,96,99,100,101,104,105,106 %N A328983 Complement of A328982. %C A328983 Conjecture: These are the numbers k such that -k is not a term in A328196. %Y A328983 Cf. A328190, A328196, A328982. %K A328983 nonn %O A328983 1,2 %A A328983 _N. J. A. Sloane_, Nov 06 2019