%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