A102284 Length of primitive cycle mentioned in A102280.

2, 3, 4, 6, 4, 7, 11, 5, 16, 5, 23, 8, 6, 20, 11, 18, 38, 29, 12, 28, 6, 24, 30, 10, 12, 38, 44, 24, 100, 17, 48, 72, 18, 14, 21, 106, 52, 29, 27, 75, 44, 7, 37, 26, 36, 14, 136, 140, 10, 59, 72, 42, 28, 15, 89, 47, 24, 34, 24, 110, 80, 72, 26, 46, 66, 141, 15, 10, 80, 68, 88, 38, 51, 20, 47, 66, 16, 107, 25, 58

Offset

1,1

Links

Geoffrey H. Morley, Table of n, a(n) for n = 1..10000

J. C. Lagarias, The set of rational cycles for the 3x+1 problem, Acta Arith. 56 (1990), 33-53. - See Table 3.1 on page 41. But there are errors - a(12)[k=35] and a(25)[k=73] are incorrect.

Crossrefs

Cf. A102280, A226634.

Sequence in context: A159633 A049044 A366577 * A273098 A328166 A266447

Adjacent sequences: A102281 A102282 A102283 * A102285 A102286 A102287

Keyword

nonn

Author

N. J. A. Sloane, Feb 19 2005

Extensions

a(12) and a(25) corrected and more terms added by Geoffrey H. Morley, Mar 14 2013

Status

approved