A080616 Consider 3 X 3 X 3 Rubik cube, but only allow the moves T2, F2, R2; sequence gives number of positions that are exactly n moves from the start.

1, 3, 6, 12, 24, 48, 93, 180, 315, 489, 604, 522, 250, 42, 3

Offset

0,2

Comments

Not every position can be reached using this restricted set of moves. Total number of positions that can be reached = 2592.

Links

Table of n, a(n) for n=0..14.

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

Crossrefs

Cf. A080601, A080614, etc.

Sequence in context: A192871 A002910 A001668 * A090572 A163876 A033893

Adjacent sequences: A080613 A080614 A080615 * A080617 A080618 A080619

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Feb 26 2003

Status

approved