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 A259345 #24 Apr 08 2020 17:17:50 %S A259345 1,1,1,30,750 %N A259345 Number of labeled single-linkage dendrograms. %H A259345 O. Frank and K. Svensson, <a href="http://dx.doi.org/10.1080/00949658108810439">On probability distributions of single-linkage dendrograms</a>, Journal of Statistical Computation and Simulation, 12 (1981), 121-131. (<a href="/A006472/a006472_1.pdf">Annotated scanned copy</a>) %H A259345 C. L. Mallows, <a href="/A006472/a006472.pdf">Note to N. J. A. Sloane circa 1979</a>. %K A259345 nonn,more %O A259345 1,4 %A A259345 _N. J. A. Sloane_, Jun 27 2015, following a suggestion by _Colin Mallows_ from 1981