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 A036588 #15 Jul 08 2025 21:46:34 %S A036588 1,1,1,2,3,6,10,17,25,38,52,73,93,121,143,172,187,205,202,201,177,158, %T A036588 123,99,66,47,26,17,7,4,1,1 %N A036588 Number of binary rooted trees with n nodes and height at most 5. %H A036588 E. M. Rains and N. J. A. Sloane, <a href="https://cs.uwaterloo.ca/journals/JIS/cayley.html">On Cayley's Enumeration of Alkanes (or 4-Valent Trees)</a>, J. Integer Sequences, Vol. 2 (1999), Article 99.1.1. %H A036588 <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a> %K A036588 nonn,fini,full %O A036588 0,4 %A A036588 _N. J. A. Sloane_