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 A055366 #11 Mar 16 2022 05:54:31 %S A055366 1,7,31,109,321,833,1951,4212,8498,16205,29449,51349,86363,140731, %T A055366 222986,344607,520758,771208,1121360,1603501,2258188,3135900,4298854, %U A055366 5823139,7801042,10343750,13584274,17680810,22820358,29222841 %N A055366 Number of asymmetric mobiles (circular rooted trees) with n nodes and 5 leaves. %H A055366 Georg Fischer, <a href="/A055366/b055366.txt">Table of n, a(n) for n = 7..129</a> %H A055366 <a href="/index/Mo#mobiles">Index entries for sequences related to mobiles</a> %Y A055366 Column 5 of A055363. %K A055366 nonn %O A055366 7,2 %A A055366 _Christian G. Bower_, May 16 2000