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%I #8 Mar 19 2023 08:29:24
%S 1,1,4,54,9235,10538496
%N Number of ways of dividing an n X n square into integer-sided rectangles, up to rotations and reflections.
%F a(n) >= A182275(n)/8.
%F a(n) ~ A182275(n)/8.
%Y Main diagonal of A361523.
%Y Cf. A182275 (rotations and reflections are considered distinct), A224239 (square pieces), A360630.
%K nonn,more
%O 0,3
%A _Pontus von Brömssen_, Mar 15 2023