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.

A085380 Numbers k such that (greatest prime as sum of distinct divisors of k) = (greatest prime not greater sum of divisors of k).

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%I A085380 #10 Mar 01 2024 06:17:13
%S A085380 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,23,24,25,26,27,
%T A085380 28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,51,52,
%U A085380 53,54,55,56,57,58,59,60,61,63,64,65,66,67,70,71,72,73,74,76,77
%N A085380 Numbers k such that (greatest prime as sum of distinct divisors of k) = (greatest prime not greater sum of divisors of k).
%H A085380 Amiram Eldar, <a href="/A085380/b085380.txt">Table of n, a(n) for n = 1..6990</a>
%F A085380 A085379(a(n)) = A070801(a(n)).
%Y A085380 Complement of A085381.
%Y A085380 Cf. A085379, A070801.
%K A085380 nonn
%O A085380 1,1
%A A085380 _Reinhard Zumkeller_, Jun 26 2003