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.

A175756 Numbers with 50 divisors.

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%I A175756 #21 May 05 2023 08:34:02
%S A175756 6480,9072,14256,16848,22032,24624,29808,30000,37584,40176,41472,
%T A175756 47952,53136,55728,60912,68688,70000,76464,79056,86832,92016,94608,
%U A175756 101250,102384,107568,110000,115248,115344,125712,130000,130896,133488
%N A175756 Numbers with 50 divisors.
%C A175756 Numbers of the forms p^49, p^24*q^1, p^9*q^4 and p^4*q^4*r^1 (A190012), where p, q and r are distinct primes.
%H A175756 T. D. Noe, <a href="/A175756/b175756.txt">Table of n, a(n) for n = 1..1000</a>
%H A175756 OEIS Wiki, <a href="https://oeis.org/wiki/Index_entries_for_number_of_divisors">Index entries for number of divisors</a>
%F A175756 A000005(a(n))=50.
%t A175756 Select[Range[200000], DivisorSigma[0, #] == 50 &] (* _Vladimir Joseph Stephan Orlovsky_, May 04 2011 *)
%o A175756 (PARI) is(n)=numdiv(n)==50 \\ _Charles R Greathouse IV_, Jun 19 2016
%Y A175756 Cf. A137484, A137488, A175750.
%K A175756 nonn
%O A175756 1,1
%A A175756 _Jaroslav Krizek_, Aug 27 2010