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.

A334175 Numbers that can be written as a product of two or more consecutive primorial numbers.

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%I A334175 #10 Feb 16 2025 08:34:00
%S A334175 2,12,180,360,6300,37800,75600,485100,14553000,69369300,87318000,
%T A334175 174636000,14567553000,15330615300,437026590000,2622159540000,
%U A334175 4951788741900,5244319080000,35413721343000,2163931680210300,7436881482030000,148702215919257000,223106444460900000
%N A334175 Numbers that can be written as a product of two or more consecutive primorial numbers.
%H A334175 Amiram Eldar, <a href="/A334175/b334175.txt">Table of n, a(n) for n = 1..1318</a>
%H A334175 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Primorial.html">Primorial</a>.
%H A334175 <a href="/index/Pri#primorial_numbers">Index entries for sequences related to primorial numbers</a>.
%e A334175      2 = prime(0)# * prime(1)#;
%e A334175     12 = prime(1)# * prime(2)#;
%e A334175    180 = prime(2)# * prime(3)#;
%e A334175    360 = prime(1)# * prime(2)# * prime(3)#;
%e A334175   6300 = prime(3)# * prime(4)#,
%e A334175   where prime(k)# is the product of the first k primes.
%Y A334175 Cf. A002110, A006939, A025487, A097889, A129912, A322804, A334174.
%K A334175 nonn
%O A334175 1,1
%A A334175 _Ilya Gutkovskiy_, Apr 17 2020