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A079737
Number of positions that are exactly n moves from the starting position in the Hockey Puck puzzle.
2
1, 5, 20, 78, 297, 1130, 4225, 15472, 54143, 178274, 508805, 1062164, 1195536, 557174, 51373, 103
OFFSET
0,2
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 10! = 3628800. Here we only use moves of types a-e.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Feb 20 2003
STATUS
approved