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.

A141320 Both n and the smallest number with n divisors are in A002182.

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%I A141320 #19 Feb 02 2025 20:17:21
%S A141320 1,2,4,6,12,24,36,48,60,120,180,240,360,720,1680,5040,10080,20160
%N A141320 Both n and the smallest number with n divisors are in A002182.
%C A141320 Question: is this sequence finite? See A189394 for detailed information.
%C A141320 Intersection of A002182 and A002183. - _Jianing Song_, Apr 03 2018
%F A141320 a(n) = tau(A189394(n)) = A000005(A189394(n)). - _Jianing Song_, Apr 03 2018
%e A141320 Both 20160 and the smallest number with 20160 divisors, 195643523275200, are in A002182, so 20160 is a term.
%Y A141320 Cf. A002182, A002183, A189394.
%K A141320 nonn,fini,full
%O A141320 1,2
%A A141320 _J. Lowell_, Aug 02 2008
%E A141320 a(16)-a(18) from _Jianing Song_, Apr 03 2018
%E A141320 Keywords fini, full are copied over from A189394 by _Max Alekseyev_, Feb 02 2025