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 A300025 #31 Jun 03 2018 09:41:54
%S A300025 6,1440,1194264,541478400,312591006756,162166557492864,
%T A300025 88044200553447984,46868779675750146048,25162028756680583497806,
%U A300025 13459244040350535046357440,7210731049497803400061471560,3860497513211463446882383706112
%N A300025 a(n) = Sum_{d|n} d * A289367(d).
%H A300025 Seiichi Manyama, <a href="/A300025/b300025.txt">Table of n, a(n) for n = 1..367</a>
%F A300025 a(n) ~ exp(2*Pi*n) / 144. - _Vaclav Kotesovec_, Jun 03 2018
%Y A300025 Cf. A289365, A289366, A289367.
%K A300025 nonn
%O A300025 1,1
%A A300025 _Seiichi Manyama_, Feb 25 2018