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A115185
Minimum number of moves to solve a variant of the first Panex puzzle of order n of transferring a side tower to the center column.
1
1, 2, 9, 23, 58, 142, 345, 835, 2018, 4874, 11769, 28415, 68602, 165622, 399849, 965323, 2330498, 5626322, 13583145, 32792618, 79168378, 191129374, 461427129, 1113983635, 2689394402, 6492772442, 15674939289, 37842651023, 91360241338
OFFSET
1,2
REFERENCES
Mark Manasse et al., The Panex puzzle, in Tribute to a Mathemagician, Peters, 2005, pp. 145-161.
FORMULA
a(n) = A109175(n) if n odd, = A109175(n)-1 if n even.
CROSSREFS
Cf. A109175.
Sequence in context: A154118 A296284 A376750 * A349189 A091107 A133469
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 11 2006
STATUS
approved