A370227 - OEIS

%I #6 Feb 12 2024 08:34:26

%S 0,0,0,0,0,0,1,3,9,25,69,201,620,1923,6339,22238,82443,333723,1490051,

%T 7241421

%N Number of chordless cycles in the n-triangular honeycomb acute knight graph.

%H Stan Wagon, <a href="http://www.jstor.org/stable/10.4169/college.math.j.45.4.278">Graph Theory Problems from Hexagonal and Traditional Chess</a>, The College Mathematics Journal, Vol. 45, No. 4, September 2014, pp. 278-287.

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

%K nonn,more

%O 1,8

%A _Eric W. Weisstein_, Feb 12 2024