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%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
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