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A079839 Number of positions that are exactly n moves from the starting position in the Billiards Nine-Ball puzzle. 1
1, 6, 24, 91, 329, 1169, 3992, 13122, 41437, 124205, 343276, 811477, 1328627, 882408, 78441, 195 (list; graph; refs; listen; history; text; internal format)
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 3628800. A move is single shift of one of the three loops in any direction.
LINKS
Jaap Scherphuis, Puzzle Pages
CROSSREFS
Sequence in context: A179716 A326755 A365978 * A270955 A281074 A255296
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Feb 20 2003
STATUS
approved

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Last modified February 26 11:46 EST 2024. Contains 370352 sequences. (Running on oeis4.)