%I #6 Jan 10 2023 13:04:58
%S 1,1,1,1,1,1,1,5,1,1,3,1,1,5,1,1,2,2
%N a(n) is the number of minimally prolific free polyominoes, i.e., that can generate the least possible number of children by adding a square.
%H John Mason, <a href="/A359667/a359667.pdf">Illustrations</a>
%e a(8) = 5 because each of the following octominoes will generate the minimum number of children given by A255890(8) = 3:
%e OO OOO OO O O
%e OO O O OOOO OOO OOO
%e OO OOO OO OOO OOO
%e OO O O
%Y Cf. A000105, A255890.
%K nonn,more
%O 1,8
%A _John Mason_, Jan 10 2023
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