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A079736
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Number of positions that are exactly n moves from the starting position in the Hockey Puck puzzle.
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1
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1, 4, 12, 35, 100, 286, 792, 2135, 5557, 13783, 31202, 61125, 93383, 93939, 49867, 10108, 526, 25
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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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 9! = 362880. Here we only use moves of types a-d.
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LINKS
| Jaap Scherphuis, Puzzle Pages
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CROSSREFS
| Cf. A079735-A079738.
Sequence in context: A126948 A131593 A084362 * A035045 A196859 A090328
Adjacent sequences: A079733 A079734 A079735 * A079737 A079738 A079739
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KEYWORD
| nonn,fini,full
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Feb 20 2003
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