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A057691 Number of terms before entering cycle in trajectory of P under the `Px+1' map, where P = n-th prime, or -1 if trajectory does not cycle. 8
5, 13, 4, 10, 25, 11, 68, 14, 39, 34, 9, 4, 5, 5, 16, 16, 234, 23, 16, 5, 11, 5, 63, 116, 18, 18, 33, 288, 47, 29, 317, 14, 12, 61, 60, 6, 16, 10, 5, 14, 46, 5, 6, 15, 105, 4, 11, 48, 44, 5, 6, 10, 5, 55, 15, 14, 25, 17, 9, 16, 6, 7, 26, 5, 33, 46, 5, 16, 23, 13, 15, 11, 16, 14, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

See A057684 for definition.

LINKS

T. D. Noe, Table of n, a(n) for n=2..1000

EXAMPLE

For n=3, P=7: trajectory of 7 is 7, 50, 25, 5, 1, 8, 4, 2, 1, 8, 4, 2, 1, 8, 4, 2, 1, ..., which has maximal term 50, cycle length 4 and there are 4 terms before it enters the cycle.

CROSSREFS

Cf. A057446, A057216, A057522, A057534, A057614. See also A033478, A057688, A057684, A057685, A057686, A057687, A057689, A057690.

Sequence in context: A065865 A088618 A121645 * A297903 A298497 A246922

Adjacent sequences:  A057688 A057689 A057690 * A057692 A057693 A057694

KEYWORD

nonn,nice,easy

AUTHOR

N. J. A. Sloane, Oct 20 2000

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Nov 08 2000

STATUS

approved

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Last modified December 13 17:36 EST 2018. Contains 318086 sequences. (Running on oeis4.)