A080620 - OEIS

%I #4 Mar 30 2012 16:49:39

%S 1,6,27,120,423,1098,1770,1650,851,198

%N Consider 3 X 3 X 3 Rubik cube, but only allow the anti-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 = 6144. This is for 2q or anti-slice moves.

%D Mark Longridge, posting to Cube Lovers List, Apr 14 1995 and May 21 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 Alan Bawden, <a href="ftp://ftp.ai.mit.edu/pub/cube-lovers/cube-mail-16.gz">Cube Lovers Archive, Part 16</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.

%K nonn,fini,full

%O 0,2

%A _N. J. A. Sloane_, Feb 26 2003