cp's OEIS Frontend

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.

A165828 Totally multiplicative sequence with a(p) = 7.

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%I A165828 #14 Oct 30 2019 08:27:46
%S A165828 1,7,7,49,7,49,7,343,49,49,7,343,7,49,49,2401,7,343,7,343,49,49,7,
%T A165828 2401,49,49,343,343,7,343,7,16807,49,49,49,2401,7,49,49,2401,7,343,7,
%U A165828 343,343,49,7,16807,49,343
%N A165828 Totally multiplicative sequence with a(p) = 7.
%H A165828 G. C. Greubel, <a href="/A165828/b165828.txt">Table of n, a(n) for n = 1..10000</a>
%F A165828 a(n) = A000420(A001222(n)) = 7^bigomega(n) = 7^A001222(n).
%F A165828 Dirichlet g.f.: Product_{p prime} 1 / (1 - 7 * p^(-s)). - _Ilya Gutkovskiy_, Oct 30 2019
%t A165828 7^PrimeOmega[Range[100]] (* _G. C. Greubel_, Apr 09 2016 *)
%o A165828 (PARI) a(n) = 7^bigomega(n); \\ _Altug Alkan_, Apr 09 2016
%Y A165828 Cf. A000420, A001222.
%K A165828 nonn,mult
%O A165828 1,2
%A A165828 _Jaroslav Krizek_, Sep 28 2009