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Number of n-celled polyknights with bilateral symmetry.
4

%I #12 Jan 13 2023 06:32:15

%S 1,0,4,2,30,32,274,403,2694,4604,27365,50777,282343

%N Number of n-celled polyknights with bilateral symmetry.

%C A polyknight is a variant of a polyomino in which two tiles a knight's move apart are considered adjacent. A polyknight need not be connected in the sense of a polyomino.

%Y Cf. A030445, A030444, A030446, A030448.

%K nonn,more

%O 1,3

%A _David W. Wilson_

%E Corrected and extended by _Joseph Myers_, May 21 2004

%E a(12)-a(13) from _John Mason_, Jan 13 2023