A080627 Consider 3 X 3 X 3 Rubik cube, but only allow the squares group to act; sequence gives number of positions that are exactly n moves from the start.

1, 6, 27, 120, 519, 1932, 6484, 20310, 55034, 113892, 178495, 179196, 89728, 16176, 1488, 144

Offset

0,2

Comments

Not every position can be reached using this restricted set of moves. Number of positions that can be reached = 663552.

Links

Table of n, a(n) for n=0..15.

Mark Longridge, God's Algorithm Calculations for Rubik's Cube...

Crossrefs

Cf. A080601, A080614, etc.

Sequence in context: A080619 A265943 A080620 * A079762 A175716 A178935

Adjacent sequences: A080624 A080625 A080626 * A080628 A080629 A080630

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Feb 26 2003

Status

approved