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.

A104465 a(n) is the least k with n prime factors (counting multiplicity) such that the sum of these n factors divides k. First member of A036844 with n prime factors.

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%I A104465 #3 Mar 31 2012 13:20:57
%S A104465 2,4,27,16,72,240,288,256,2688,3840,4608,13824,30720,61440,73728,
%T A104465 65536,294912,983040,4325376,5898240,11010048,15728640,18874368,
%U A104465 141557760,169869312,654311424,1107296256,1006632960,2818572288,4026531840
%N A104465 a(n) is the least k with n prime factors (counting multiplicity) such that the sum of these n factors divides k. First member of A036844 with n prime factors.
%C A104465 A001222(a(n)) = n; A001414(a(n)) divides a(n).
%e A104465 a(5) = 72 = 2*2*2*3*3; 2+2+2+3+3 = 12 divides 72.
%Y A104465 Cf. A001414, A001222, A036844, A086487.
%K A104465 nonn,less
%O A104465 1,1
%A A104465 _David Wasserman_, Mar 09 2005