A289901 - OEIS

%I #14 Dec 30 2023 13:18:36

%S 0,0,0,2,9,30,103,435,2469,18958,194091,2661243,49287232,1236661032

%N Number of (undirected) cycles in the n-triangular honeycomb acute knight graph.

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

%Y Cf. A290331 (number of undirected paths).

%K nonn,more

%O 1,4

%A _Eric W. Weisstein_, Jul 14 2017

%E a(14) from _Eric W. Weisstein_, Dec 16 2023