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 A275295 #8 Aug 02 2016 08:05:27 %S A275295 1,70,4005,219521,11954993,653625597,35989579051,1997232863281, %T A275295 111698425867139,6292920483661649,356957345427055439, %U A275295 20375264103726231304,1169732275950521805077,67508137728429209948117,3914904903283946200635048,228039200549822180269793411 %N A275295 Number of set partitions of [2n] with symmetric block size list of length eight. %H A275295 Alois P. Heinz, <a href="/A275295/b275295.txt">Table of n, a(n) for n = 4..300</a> %H A275295 Wikipedia, <a href="https://en.wikipedia.org/wiki/Partition_of_a_set">Partition of a set</a> %F A275295 a(n) ~ 64^n / (20160*Pi^2*n^2). - _Vaclav Kotesovec_, Aug 02 2016 %e A275295 a(4) = 1: 1|2|3|4|5|6|7|8. %Y A275295 Bisection of column k=8 of A275281. %K A275295 nonn %O A275295 4,2 %A A275295 _Alois P. Heinz_, Jul 22 2016