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A080620
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.
0
1, 6, 27, 120, 423, 1098, 1770, 1650, 851, 198
OFFSET
0,2
COMMENTS
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.
REFERENCES
Mark Longridge, posting to Cube Lovers List, Apr 14 1995 and May 21 1995.
CROSSREFS
Cf. A080601, A080614, etc.
Sequence in context: A373302 A080619 A265943 * A080627 A079762 A175716
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Feb 26 2003
STATUS
approved