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 A084965 #7 Mar 24 2021 13:54:20 %S A084965 1,1,6,44,386,3852,42640,516791,6817378,98091071,1569786228 %N A084965 Number of labeled totally ordered semigroups with n elements. %H A084965 Petr Gajdoš and Martin Kuřil, <a href="https://doi.org/10.1007/s00233-014-9602-3">Ordered semigroups of size at most 7 and linearly ordered semigroups of size at most 10</a>, Semigroup Forum, 89 (2014), 639-663. %H A084965 J. Slaney, <a href="ftp://arp.anu.edu.au/pub/papers/slaney/finder/finder.ps.gz">FINDER: Finite Domain Enumerator</a> %Y A084965 Cf. A023814. %K A084965 nonn,hard,more %O A084965 0,3 %A A084965 _Michael Somos_, Jun 15 2003 %E A084965 a(9)-a(10) from Gajdoš and Kuřil added by _Andrey Zabolotskiy_, Mar 24 2021