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 A283118 #17 Dec 16 2022 09:04:19
%S A283118 6,18,24,42,31,72,48,90,78,93,72,168,84,144,124,186,108,234,120,217,
%T A283118 192,216,144,360,156,252,240,336,180,372,192,378,288,324,248,546,228,
%U A283118 360,336,465,252,576,264,504,403,432,288,744,342,468,432,588,324,720
%N A283118 a(n) = sigma(5*n).
%H A283118 Seiichi Manyama, <a href="/A283118/b283118.txt">Table of n, a(n) for n = 1..10000</a>
%F A283118 a(n) = A000203(5*n).
%F A283118 Sum_{k=1..n} a(k) = (29*Pi^2/60) * n^2 + O(n*log(n)). - _Amiram Eldar_, Dec 16 2022
%t A283118 Table[DivisorSigma[1, 5 n], {n, 56}] (* _Michael De Vlieger_, Mar 01 2017 *)
%o A283118 (PARI) a(n) = sigma(5*n) \\ _Amiram Eldar_, Dec 16 2022
%Y A283118 Sigma(k*n): A000203 (k=1), A062731 (k=2), A144613 (k=3), A193553 (k=4), this sequence (k=5), A224613 (k=6), A283078 (k=7), A283122 (k=8), A283123 (k=9).
%Y A283118 Cf. A008587.
%K A283118 nonn
%O A283118 1,1
%A A283118 _Seiichi Manyama_, Mar 01 2017