%N Consider 3 X 3 X 3 Rubik cube, but only allow the slice group to act; sequence gives number of positions that are exactly n moves from the start.
%C Not every position can be reached using this restricted set of moves. Total number of positions that can be reached = 768.
%D Mark Longridge, posting to Cube Lovers List, Apr 14 1995.
%H Alan Bawden, <a href="ftp://ftp.ai.mit.edu/pub/cube-lovers/cube-mail-15.gz">Cube Lovers Archive, Part 15</a>
%H Mark Longridge, <a href="http://cubeman.org/fullcube.txt">God's Algorithm Calculations for Rubik's Cube...</a>
%Y Cf. A080601, A080614, etc.
%A _N. J. A. Sloane_, Feb 26 2003