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 A035356 #19 Jan 18 2021 02:41:19 %S A035356 1,1,0,0,0,0,1,4,13,45,143,461,1470,4747,15364,50283,165549,549734, %T A035356 1837539,6184589,20938983,71297174,244009225,839101403,2898145437, %U A035356 10050549437,34985611467,122209803101,428285696895,1505491979826 %N A035356 Number of asymmetric polygonal cacti with bridges (mixed Husimi trees). %H A035356 <a href="/index/Ca#cacti">Index entries for sequences related to cacti</a> %H A035356 <a href="/index/Tra#trees">Index entries for sequences related to trees</a> %F A035356 G.f.: A(x) = B(x) + C(x) - B(x)*D(x), where B, C, D respectively are g.f.s of A035353, A035354, A035355. %Y A035356 Cf. A000083, A000237, A000314, A035082, A035349-A035357. %K A035356 nonn %O A035356 0,8 %A A035356 _Christian G. Bower_, Nov 15 1998