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Number of free corner-connected 4-dimensional polyhypercubes with n cells.
2

%I #14 Nov 02 2023 14:19:57

%S 1,1,4,23,207,2794

%N Number of free corner-connected 4-dimensional polyhypercubes with n cells.

%H <a href="/index/Pol#polyominoes">Index entries for sequences related to polyominoes</a>.

%Y 147th row of A366766.

%Y Cf. A038171, A068870.

%Y See A365366 for a table of similar sequences.

%K nonn,hard,more

%O 1,3

%A _Pontus von Brömssen_, Sep 02 2023