

A035499


Turns at which card 1 surfaces in Guy's shuffling problem (A035485).


1



0, 3, 7, 50, 93, 307, 832, 3345, 7438, 32327, 12165645, 861940477, 2151642067, 29933164804, 39288453372, 713937018048, 4426276078818, 19966143995933
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OFFSET

0,2


REFERENCES

D. Gale, Mathematical Entertainments: "Careful CardShuffling and Cutting Can Create Chaos," Mathematical Intelligencer, vol. 14, no. 1, 1992, pages 5456.
D. Gale, Tracking the Automatic Ant and Other Mathematical Explorations, A Collection of Mathematical Entertainments Columns from The Mathematical Intelligencer, Springer, 1998.


LINKS

Table of n, a(n) for n=0..17.


MATHEMATICA

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


CROSSREFS

Cf. A035485, A035490A035494. Gives terms where 1's appear in A035492.
Sequence in context: A118393 A113775 A113236 * A273092 A120788 A207138
Adjacent sequences: A035496 A035497 A035498 * A035500 A035501 A035502


KEYWORD

nonn,nice


AUTHOR

N. J. A. Sloane, Wouter Meeussen


EXTENSIONS

More terms from David W. Wilson; and later from Jud McCranie, Oct 22 2000
a(15)a(17) from Mark R. Diamond, Apr 20 2014


STATUS

approved



