%I M1901 N0750 #27 Sep 10 2020 03:00:33
%S 1,2,8,96,4608,798720,361267200,362794844160
%N Number of ways of folding a 2 X 2 X ... X 2 n-dimensional map.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H W. F. Lunnon, <a href="https://doi.org/10.1093/comjnl/14.1.75">Multi-dimensional map-folding</a>, Computer Journal 14 1971 75-80.
%H <a href="/index/Fo#fold">Index entries for sequences obtained by enumerating foldings</a>
%Y Cf. A000136, A000560, A195646, A001418.
%K hard,nonn,nice,more
%O 0,2
%A _N. J. A. Sloane_.
%E a(7) from _Sean A. Irvine_, Dec 21 2017