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 A026462 #8 Mar 06 2016 11:31:13
%S A026462 1,4,5,6,7,8,9,10,11,12,13,15,16,17,19,20,21,24,25,27,29,31,32,35,36,
%T A026462 37,39,41,44,45,49,51,55,56,57,59,60,65,67,69,71,72,77,80,81,84,85,87,
%U A026462 90,91,92,95,96,99,101,104,105,107,109,111
%N A026462 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-2 for 1<=i<=j<=n, n >= 2.
%H A026462 Ivan Neretin, <a href="/A026462/b026462.txt">Table of n, a(n) for n = 1..1000</a>
%t A026462 a = {1, 4}; used = {a[[1]]^2 - 2, a[[1]]*a[[2]] - 2, a[[2]]^2 - 2}; Do[k = a[[-1]] + 1; While[MemberQ[used, k], k++]; AppendTo[a, k]; used = Union[used, k*a - 2], {n, 3, 60}]; a (* _Ivan Neretin_, Mar 06 2016 *)
%Y A026462 Cf. A026453 and references therein.
%K A026462 nonn
%O A026462 1,2
%A A026462 _Clark Kimberling_