%I #12 Aug 16 2017 03:56:25
%S 1,3,22,168,5251,194751,27478594,3852814320,2065546517563
%N Number of (non-null) connected induced subgraphs in the n X n black bishop graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BlackBishopGraph.html">Black Bishop Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ConnectedGraph.html">Connected Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Vertex-InducedSubgraph.html">Vertex-Induced Subgraph</a>
%Y Cf. A289145, A290769.
%K nonn,more
%O 1,2
%A _Eric W. Weisstein_, Aug 09 2017
%E a(8)-a(9) from _Andrew Howroyd_, Aug 15 2017