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 A336493 #5 Jul 24 2020 16:59:22 %S A336493 4,30,70,105,286,260,646,627,897,1798,1581,1924,3526,2967,3055,3339, %T A336493 7198,3721,6164,10366,5840,9717,10707,9256,9409,20806,16377,23326, %U A336493 16132,12769,21844,26331,38086,29607,44998,22801,33284,40587,35905,29929,64798,44164,73726 %N A336493 a(n) is the largest integer x such that x/sopf(x) = prime(n) where sopf(x) is the sum of distinct prime factors of x and prime(n) is the n-th prime. %C A336493 For the primes p=prime(m) that are in A336297, a(m) = prime(m)^2. %e A336493 For the 4th prime p=7, the 3 integers (49,84,105) satisfy x/sopf(x)=7, so a(4)=105. %Y A336493 Cf. A008472. %Y A336493 Subsequence of A336445. %Y A336493 Cf. A336296, A336297. %K A336493 nonn %O A336493 1,1 %A A336493 _Michel Marcus_, Jul 23 2020