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%I #18 Oct 14 2019 04:29:36
%S 1,1,1,2,6,156,7013488,29288387523484992,
%T 234431745534048922731115019069056
%N Erroneous version of A051240.
%H E. M. Palmer, <a href="http://dx.doi.org/10.1016/0012-365X(73)90069-1">On the number of n-plexes</a>, Discrete Math., 6 (1973), 377-390.
%K dead
%O 1,4
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