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 A165841 #8 Apr 10 2016 02:31:59 %S A165841 1,20,20,400,20,400,20,8000,400,400,20,8000,20,400,400,160000,20,8000, %T A165841 20,8000,400,400,20,160000,400,400,8000,8000,20,8000,20,3200000,400, %U A165841 400,400,160000,20,400,400,160000,20,8000,20,8000,8000,400,20,3200000,400 %N A165841 Totally multiplicative sequence with a(p) = 20. %H A165841 G. C. Greubel, <a href="/A165841/b165841.txt">Table of n, a(n) for n = 1..10000</a> %F A165841 a(n) = A009964(A001222(n)) = 20^bigomega(n) = 20^A001222(n). %t A165841 20^PrimeOmega[Range[100]] (* _G. C. Greubel_, Apr 09 2016 *) %K A165841 nonn,mult %O A165841 1,2 %A A165841 _Jaroslav Krizek_, Sep 28 2009