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A143807 Number of geodesics between a pair of perfect states in the Tower of Hanoi with 4 pegs and n disks. 0
1, 2, 2, 22, 40, 18, 2468, 11698, 11426, 2178, 74056628 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Sequence A007664 gives the lengths of the geodesics being counted by the present sequence (conjecturally this is true for all n; experimentally it is true for the first 20 terms)
Sequence in context: A353101 A190632 A036110 * A118454 A118326 A212847
KEYWORD
hard,nonn
AUTHOR
Jason Behrstock (jason(AT)math.columbia.edu), Sep 01 2008
STATUS
approved

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Last modified April 18 15:33 EDT 2024. Contains 371780 sequences. (Running on oeis4.)