A080628 Consider 3 X 3 X 3 Rubik cube, but only allow the group to act; sequence gives number of positions that are exactly n moves from the start.

1, 4, 10, 24, 58, 140, 338, 816, 1970, 4756, 11448, 27448, 65260, 154192, 360692, 827540, 1851345, 3968840, 7891990, 13659821, 18471682, 16586822, 8039455, 1511110, 47351, 87

Offset: 0

Author

N. J. A. Sloane, Feb 26 2003

Keywords

• nonn
• fini
• full

Comments

Not every position can be reached using this restricted set of moves. Number of positions that can be reached = 73483200.

Links

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

Crossrefs

Cf. A080601, A080614, etc.