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%I #8 Mar 19 2023 08:29:16
%S 1,6,61,892,9235,406653,9252097,211703640
%N Number of ways of dividing an n X 4 rectangle into integer-sided rectangles, up to rotations and reflections.
%F a(n) >= A220297(n)/4 for n != 4.
%F a(n) ~ A220297(n)/4.
%Y Fourth column of A361523.
%Y Cf. A220297 (rotations and reflections are considered distinct), A359020 (square pieces).
%K nonn,more
%O 0,2
%A _Pontus von Brömssen_, Mar 15 2023