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.
%I A182521 #16 Sep 18 2019 13:43:48 %S A182521 1,2,3,5,7,10,17,23,25,45,47,77,87,95,103,107,137,143,175,215,247,283, %T A182521 287,313,347,355,373,385,397,425,443,455,467,565,577,593,637,653,667, %U A182521 703,737,773,775,787,850,907,913,917,943,975,1033,1075,1117,1127,1130 %N A182521 Numbers n such that A182481(n)=1 and there is not a representation n=d_1*d_2 with d_2>1, such that A182481(d_1)=d_2. %C A182521 Or the numbers n such that 6*n-1 is lesser of twin primes which occurs in A182482 only once. %C A182521 All terms of A060212 are in the sequence. %H A182521 Ray Chandler, <a href="/A182521/b182521.txt">Table of n, a(n) for n = 1..10000</a> %F A182521 Numbers n for which A182483(A182513(n))/n = A182481(n) = 1. %Y A182521 Cf. A182481, A182482, A182483, A182513, A060212. %K A182521 nonn %O A182521 1,2 %A A182521 _Vladimir Shevelev_, May 03 2012 %E A182521 Insert 1 and more terms from _Ray Chandler_, Sep 18 2019