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A035492 Position of card 1 after n-th shuffle in Guy's shuffling problem (A035485). 6
1, 2, 4, 1, 2, 4, 8, 1, 2, 4, 8, 16, 7, 14, 28, 25, 17, 34, 31, 23, 5, 10, 20, 40, 31, 11, 22, 44, 31, 3, 6, 12, 24, 48, 27, 54, 35, 70, 63, 47, 13, 26, 52, 17, 34, 68, 43, 86, 75, 51, 1, 2, 4, 8, 16, 32, 64, 13, 26, 52, 104, 85, 45, 90, 51 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

D. Gale, Mathematical Entertainments: "Careful Card-Shuffling and Cutting Can Create Chaos," The Mathematical Intelligencer, vol. 14, no. 1, 1992, pages 54-56.

D. Gale, Tracking the Automatic Ant and Other Mathematical Explorations, A Collection of Mathematical Entertainments Columns from The Mathematical Intelligencer, Springer, 1998.

LINKS

Lars Blomberg, Table of n, a(n) for n = 0..9999

Eric Weisstein's World of Mathematics, Perfect Shuffle.

MATHEMATICA

Position[ NestList[ riguy, {}, 64 ], 1 ]; Transpose[ % ][ [ 2 ] ] // See A035490.

CROSSREFS

Cf. A035485, A035490-A035494.

Sequence in context: A106645 A115314 A062039 * A101229 A057176 A194671

Adjacent sequences:  A035489 A035490 A035491 * A035493 A035494 A035495

KEYWORD

nonn

AUTHOR

Wouter Meeussen

STATUS

approved

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Last modified February 21 14:40 EST 2018. Contains 299414 sequences. (Running on oeis4.)