A080615 Consider 3 X 3 X 3 Rubik cube, but only allow the moves T2, D2, F2, B2; sequence gives number of positions that are exactly n moves from the start.

1, 4, 10, 24, 53, 64, 31, 4, 1

Offset

0,2

Comments

Not every position can be reached using this restricted set of moves. Total number of positions that can be reached = 192.

Links

Table of n, a(n) for n=0..8.

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

Crossrefs

Cf. A080601, A080614, etc.

Sequence in context: A107659 A162588 A280541 * A173729 A340569 A097976

Adjacent sequences: A080612 A080613 A080614 * A080616 A080617 A080618

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Feb 26 2003

Status

approved