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A079864
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Number of positions that are exactly n moves from the starting position in the Rashkey Type 2 puzzle.
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1
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1, 2, 5, 12, 29, 67, 160, 385, 920, 2191, 5191, 12228, 28401, 64826, 143540, 303171, 588027, 980723, 1256693, 1049406, 449402, 72968, 2888, 14
(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 4961250. Here we consider a move to be a quarter turn of a disc.
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LINKS
| Jaap Scherphuis, Puzzle Pages
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CROSSREFS
| Cf. A079857.
Sequence in context: A024960 A162036 A062422 * A131045 A026721 A094975
Adjacent sequences: A079861 A079862 A079863 * A079865 A079866 A079867
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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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