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 A225729 #7 May 14 2013 21:09:37
%S A225729 2,3,4,6,8,9,10,12,14,15,16,18,20,24,28,30,32,36,40,42,48,54,56,60,66,
%T A225729 70,72,78,80,84,90,96,100,108,112,120,126,132,140,144,150,156,160,168,
%U A225729 180,192,210,216,240,252,264,270,280,288,300,312,330,336,360,396
%N A225729 Numbers n such that n < d(n)^(21/10), where d(n) is the number of divisors of n.
%C A225729 Alternatively, we could write n^10 < d(n)^21. The last odd number is a(10) = 15.
%H A225729 T. D. Noe, <a href="/A225729/b225729.txt">Table of n, a(n) for n = 1..89</a> (complete sequence)
%t A225729 t = {}; Do[If[n < DivisorSigma[0, n]^(21/10), AppendTo[t, n]], {n, 10^4}]; t
%Y A225729 Cf. A034884 (n < d(n)^2), A175495 (n < 2^d(n)), A056757 (n < d(n)^3).
%Y A225729 Cf. A225730-A225738.
%K A225729 nonn,fini,full
%O A225729 1,1
%A A225729 _T. D. Noe_, May 14 2013