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 A022016 #60 Nov 19 2024 05:24:00 %S A022016 1,1,4,12,47,174,749,3291,15675,78104,411042,2261961,13009112,77860234 %N A022016 Number of partially ordered sets with no isolated points and with n "lines": pairs (a,b) where a < b and there is no c with a < c < b. The lines form the minimal basis for the partial ordering. %C A022016 The points are unlabeled. %D A022016 See A000112 for references and links about partially ordered sets. %H A022016 N. J. A. Sloane, <a href="/A022016/a022016.jpg">Illustration of initial terms of A022016 and A022017</a>. %e A022016 See Sloane's link. %Y A022016 Cf. A000112, A022017, A342447. %K A022016 nonn,more %O A022016 0,3 %A A022016 _Franklin T. Adams-Watters_, Mar 30 2002 %E A022016 a(6)-a(13) from Rico Zöllner and _Konrad Handrich_, Nov 19 2024