%I #12 Sep 03 2017 21:59:21
%S 1,2,44,10066
%N Number of tilings of an n X n square using distinct polyominoes.
%C The sequence gives the number of distinct tilings by polyominoes of a square with side n, considering tilings that are formed of distinct polyominoes. As for "free" polyominoes, tilings that are reflections or rotations of each other are not considered distinct.
%H John Mason, <a href="/A291808/a291808_2.pdf">Example tilings</a>
%Y Cf. A268416 (polyominoes that will fit in nsided square), A291806 (polyomino tilings of square), A291807 (symmetric tilings), A291809 (tilings with differently sized polyominoes).
%K nonn,more
%O 1,2
%A _John Mason_, Sep 01 2017
