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 A165831 #12 Oct 30 2019 09:21:55
%S A165831 1,10,10,100,10,100,10,1000,100,100,10,1000,10,100,100,10000,10,1000,
%T A165831 10,1000,100,100,10,10000,100,100,1000,1000,10,1000,10,100000,100,100,
%U A165831 100,10000,10,100,100,10000,10,1000,10,1000,1000,100,10,100000,100,1000
%N A165831 Totally multiplicative sequence with a(p) = 10.
%H A165831 G. C. Greubel, <a href="/A165831/b165831.txt">Table of n, a(n) for n = 1..10000</a>
%F A165831 a(n) = A011557(A001222(n)) = 10^bigomega(n) = 10^A001222(n).
%F A165831 Dirichlet g.f.: Product_{p prime} 1 / (1 - 10 * p^(-s)). - _Ilya Gutkovskiy_, Oct 30 2019
%t A165831 10^PrimeOmega[Range[50]] (* _Harvey P. Dale_, Apr 03 2013 *)
%Y A165831 Cf. A001222, A011557.
%K A165831 nonn,mult
%O A165831 1,2
%A A165831 _Jaroslav Krizek_, Sep 28 2009