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 A364582 #18 Jul 31 2023 18:15:26 %S A364582 1,4,16,28,80,112,320,280,784,560,1600,1120,10000,2240,3920,2800, %T A364582 25600,5600,1310720,6160,15680,11200,48400,12320,110000,70000,39200, %U A364582 24640,6553600,30800,5368709120,36400,78400,179200,440000,61600,343597383680,1210000,490000,80080 %N A364582 a(n) is the least number with exactly n divisors of the form 3*k+1. %H A364582 Bert Dobbelaere, <a href="/A364582/b364582.txt">Table of n, a(n) for n = 1..200</a> %o A364582 (PARI) a(n) = my(k=1); while (sumdiv(k, d, (d%3)==1) != n, k++); k; \\ _Michel Marcus_, Jul 29 2023 %Y A364582 Cf. A001817, A005179, A038547, A364583. %K A364582 nonn %O A364582 1,2 %A A364582 _Ilya Gutkovskiy_, Jul 28 2023 %E A364582 More terms from _Bert Dobbelaere_, Jul 31 2023