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Search: id:A079864
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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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2
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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; listen)
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OFFSET
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0,2
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COMMENT
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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
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Jaap Scherphuis, Puzzle Pages
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CROSSREFS
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Cf. A079857.
Sequence in context: A024960 A162036 A062422 this_sequence A131045 A026721 A094975
Adjacent sequences: A079861 A079862 A079863 this_sequence A079865 A079866 A079867
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KEYWORD
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nonn,fini,full
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Feb 21 2003
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