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A080550
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Number of positions that are exactly n moves from the starting position in the Luminations Level 2 puzzle.
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0
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1, 1, 3, 7, 15, 21, 30, 32, 34, 27, 23, 14, 10, 4, 3
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| This is the number of positions that can be reached in n moves from the start, but which cannot be reached in fewer than n moves.
A puzzle in the Rubik cube family. The total number of distinct positions is 225. Here positions differing by rotations are considered the same.
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LINKS
| Jaap Scherphuis, Puzzle Pages
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CROSSREFS
| Cf. A080546-A080558.
Sequence in context: A077777 A153829 A153830 * A043725 A121712 A175544
Adjacent sequences: A080547 A080548 A080549 * A080551 A080552 A080553
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KEYWORD
| nonn,fini,full
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Feb 21 2003
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