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%I #8 Feb 16 2024 21:08:05
%S 0,0,0,0,0,1,1,28,5376,3568950,6258582792,25002294181788,
%T 205392847313891952,3209584611412062072189,89660154903506596076142475,
%U 4255300535932491203339640563104,328814773250544726322649425157897056,39898110763361703664060940279190531023640
%N Number of labeled 6-arch graphs on n nodes.
%H Allan Bickle, <a href="https://digitalcommons.georgiasouthern.edu/cgi/viewcontent.cgi?article=1409&context=tag">A Survey of Maximal k-degenerate Graphs and k-Trees</a>, Theory and Applications of Graphs 0 1 (2024) Article 5.
%H Saverio Caminiti and Emanuele G. Fusco, <a href="http://www.cs.uwaterloo.ca/journals/JIS/VOL10/Caminiti/caminiti.html">On the Number of Labeled k-arch Graphs</a>, Journal of Integer Sequences, Vol 10 (2007), Article 07.7.5
%Y Cf. A098721-A098724, A131311-A131314.
%K nonn
%O 1,8
%A _N. J. A. Sloane_, Sep 29 2007
%E Terms a(11) and beyond from _Andrew Howroyd_, Nov 07 2019