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%I #7 Feb 01 2023 07:16:23
%S 1,1,1,4,12,46,172,689,2763,11241,45706,186346,759375,3095191,
%T 12610825,51370336,209194923,851712069,3466881944
%N Number of pointed polyominoes with n cells.
%C Number of pairs (P,C), where P is a polyomino with n cells (cf. A000105) and C runs through the orbit representatives of cells in P under the automorphism group of P.
%e a(4) = 12: polyomino and number of orbits on points:
%e XXXX..XXX..XXX..XX...XX
%e ......X.....X....XX..XX
%e (2)...(4)..(3)..(2)..(1): total 12
%Y Cf. A000105.
%K nonn,nice,more
%O 0,4
%A _David Applegate_ and _N. J. A. Sloane_, Mar 09 2007
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