A290783 - OEIS

%I #9 Feb 16 2025 08:33:50

%S 1,6,43,648,22573,1631898,230863663,63150269964,33611700618961

%N Number of (non-null) connected induced subgraphs in the n-triangular honeycomb bishop graph.

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ConnectedGraph.html">Connected Graph</a>

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Vertex-InducedSubgraph.html">Vertex-Induced Subgraph</a>

%K nonn,more,changed

%O 1,2

%A _Eric W. Weisstein_, Aug 10 2017

%E a(8)-a(9) from _Andrew Howroyd_, Aug 15 2017