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 A300749 #21 Jul 09 2025 04:46:45 %S A300749 1,1,1,2,3,7,12,30,64,177,457,1403,4327,15024,54730,219311,942908, %T A300749 4426513,22525015,124896794,752933593,4938212176,35190683416, %U A300749 272266028155,2284292635109 %N A300749 Number of connected squarefree bipartite graphs on n vertices. %H A300749 CombOS - Combinatorial Object Server, <a href="http://combos.org/nauty">Generate graphs</a> %H A300749 Brendan McKay, <a href="https://web.archive.org/web/*/http://list.seqfan.eu/oldermail/seqfan/2018-March/018436.html">Inverse Euler transforms needed</a>, message on the SeqFan list, Mar 12 2018. %F A300749 Inverse Euler transform of A138347. %Y A300749 Cf. A138347. %K A300749 nonn,more %O A300749 1,4 %A A300749 _Alois P. Heinz_, Mar 11 2018