A274299 A bisection of A002326.

2, 3, 10, 4, 18, 11, 18, 5, 12, 12, 14, 23, 8, 20, 58, 6, 66, 35, 20, 39, 82, 28, 12, 36, 30, 51, 106, 36, 44, 24, 20, 7, 130, 36, 138, 60, 42, 15, 20, 52, 162, 83, 18, 60, 178, 60, 40, 95, 12, 99, 84, 66, 210, 28, 18, 37, 226, 30, 92, 119, 162, 36, 50, 8, 36, 131, 22, 135, 20, 30, 94, 60, 48, 116

Offset: 0

Author

N. J. A. Sloane, Jun 20 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..10000
• Steve Butler, Persi Diaconis and R. L. Graham, The mathematics of the flip and horseshoe shuffles, arXiv:1412.8533 [math.CO], 2014.
• Steve Butler, Persi Diaconis and R. L. Graham, The mathematics of the flip and horseshoe shuffles, The American Mathematical Monthly 123.6 (2016): 542-556.

Crossrefs

Cf. A002326, A007346, A274298.

Programs

Mathematica

Table[MultiplicativeOrder[2, 4 n + 3], {n, 0, 73}] (* Stan Wagon, Jun 24 2016 *)