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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

Mark Manasse et al., The Panex puzzle, in Tribute to a Mathemagician, Peters, 2005, pp. 145-161.

LINKS

Table of n, a(n) for n=1..29.

N. Baxter, Panex Puzzle Resources.

FORMULA

a(n) = A109175(n) if n odd, = A109175(n)-1 if n even.

CROSSREFS

Cf. A109175.

Sequence in context: A009304 A154118 A296284 * A091107 A133469 A323807

Adjacent sequences:  A115182 A115183 A115184 * A115186 A115187 A115188

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 11 2006

STATUS

approved

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Last modified February 16 02:39 EST 2019. Contains 320140 sequences. (Running on oeis4.)