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 A288995 #26 Jun 23 2017 11:53:54
%S A288995 264,4152,77064,1551576,33343752,745374264,17140046088,402328199064,
%T A288995 9593786367240,231629451811896,5648880427214088,138910500564007128,
%U A288995 3439808201626085640,85686183717823968312,2145402754204531455240,53956201350487199168280
%N A288995 a(n) = 12 * (A288968(n) - 2).
%H A288995 Seiichi Manyama, <a href="/A288995/b288995.txt">Table of n, a(n) for n = 1..701</a>
%F A288995 a(n) = (1/n) * Sum_{d|n} A008683(n/d) * A288877(d).
%Y A288995 Related to E_{k+2}/E_k: this sequence (k=2), A192731 (k=4), A289061 (k=6).
%Y A288995 Cf. A008683, A288877 (E_4*E_2), A288968.
%Y A288995 Cf. A289062.
%K A288995 nonn
%O A288995 1,1
%A A288995 _Seiichi Manyama_, Jun 23 2017