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 A284698 #14 Jul 24 2021 01:11:24 %S A284698 1,2,3,4,6,8,9,12,16,18,24,27,36,48,54,64,72,81,108,144,162,192,216, %T A284698 256,324,432,512,576,648,729,768,1296,1458,1536,1728,2304,2916,4096, %U A284698 4608,5184,5832,6561,6912,11664,12288,13122,13824,19683,20736,26244,36864 %N A284698 Numbers k such that A284695(k) <= 3. %C A284698 This sequence is a subsequence of the 3-smooth numbers (A003586). %C A284698 This sequence could be interpreted as the "recursive" 3-smooth numbers. %C A284698 If i and j belong to this sequence, then 2^i, 3^j and 2^i*3^j also belong to this sequence. %C A284698 This sequence contains the nonzero values in A014221 and in A014222. %H A284698 Rémy Sigrist, <a href="/A284698/b284698.txt">Table of n, a(n) for n = 1..1331</a> (terms up to 10^1000) %H A284698 Rémy Sigrist, <a href="/A284698/a284698.gp.txt">PARI program for A284698</a> %H A284698 Rémy Sigrist, <a href="/A284698/a284698.png">Logarithmic scatterplot of the terms up to 10^10000</a> %e A284698 1762613844998129336721604608 = 2^3^(2^2) * 3^(2*3) appears in this sequence. %Y A284698 Cf. A003586, A014221, A014222, A284695. %K A284698 nonn %O A284698 1,2 %A A284698 _Rémy Sigrist_, Apr 01 2017