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 A099695 #13 Jan 13 2021 01:21:36
%S A099695 1,1,8,106,2144,59844,2173450,98648246,5433864078,355229741266,
%T A099695 27080154837658,2373310690810690,236327564463489838,
%U A099695 26475199136060717618,3308794737926514931894,457980967372496137472590,69761664006643652403884218,11629282648335699139979015070
%N A099695 Consider the family of directed multigraphs enriched by the species of directed sets. Sequence gives number of those multigraphs with n labeled arcs.
%D A099695 G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004.
%H A099695 Andrew Howroyd, <a href="/A099695/b099695.txt">Table of n, a(n) for n = 0..100</a>
%H A099695 G. Paquin, <a href="/A038205/a038205.pdf">Dénombrement de multigraphes enrichis</a>, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]
%F A099695 E.g.f.: B(2*exp(x) - x - 2) where B(x) is the e.g.f. of A014505. - _Andrew Howroyd_, Jan 12 2021
%o A099695 (PARI) \\ R(n) is e.g.f. of 1, 1, 2, 2, 2, ...; EnrichedGdSeq defined in A098623.
%o A099695 R(n)={2*exp(x + O(x*x^n)) - x - 1}
%o A099695 EnrichedGdSeq(R(20)) \\ _Andrew Howroyd_, Jan 12 2021
%Y A099695 Cf. A014505, A098623, A099692, A099693, A099694.
%K A099695 nonn
%O A099695 0,3
%A A099695 _N. J. A. Sloane_, Oct 26 2004
%E A099695 Terms a(11) and beyond from _Andrew Howroyd_, Jan 12 2021