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 A343357 #23 Apr 15 2021 04:52:00 %S A343357 20169691981106018776756331,21373852696395930345517903, %T A343357 21975933054040886129898689,23476198863254546445077041, %U A343357 23782174126975753483041047,23836908704943476736166573,24137500239684251978741183,24272002214551310731350839,24955720586792192723783257,24986334842265665051802619 %N A343357 7-rough abundant numbers. %C A343357 Each term has at least A001276(4) = 15 distinct prime factors and A108227(4) = 18 prime factors counted with multiplicity. - _Jianing Song_, Apr 13 2021 %C A343357 The smallest term with exactly 15 distinct prime factors is a(830) = 465709156638373299218537971 = 7^3 * 11^2 * 13^2 * 17^2 * 19 * 23 * ... * 61. - _Jianing Song_, Apr 14 2021 %H A343357 David A. Corneth, <a href="/A343357/b343357.txt">Table of n, a(n) for n = 1..2187</a> %e A343357 k = 20169691981106018776756331 is in the sequence as its smallest prime factor is at least 7 and it is abundant as sigma(k) > 2*k. %o A343357 (PARI) is(n) = gcd(n, 30) == 1 && sigma(n) > 2*n %Y A343357 Cf. A005101, A007775, A047802, A115414. %K A343357 nonn %O A343357 1,1 %A A343357 _David A. Corneth_, Apr 12 2021