A132990 Trajectory of 11 under map n -> A132988(n).

11, 16, 18, 31, 32, 33, 23, 21, 37, 79, 67, 83, 54, 63, 77, 65, 157, 115, 158, 155, 227, 239, 250, 176, 150, 96, 84, 62, 98, 87, 50, 46, 40, 29, 22, 20, 24, 30, 38, 41, 36, 76, 64, 52, 60, 47, 53, 121, 331, 202, 112, 307, 507, 453, 267, 190, 128, 90, 116, 107, 147, 122

Offset

0,1

Comments

11 is the smallest number that does not belong to a cycle with elements <= 200000. Further numbers that do not belong to a cycle with elements <= 200000 and do not occur in the trajectory of a smaller number are 25, 59, 73, 75, 99, 125, ... .

Conjecture: Sequence is not periodic.

Links

Table of n, a(n) for n=0..61.

Example

a(1) = A132988(11) = 16; a(2) = A132988(16) = 18.

Crossrefs

Cf. A132988, A132989, A132991.

Sequence in context: A147333 A097156 A138791 * A074197 A106673 A329389

Adjacent sequences: A132987 A132988 A132989 * A132991 A132992 A132993

Keyword

nonn

Author

Klaus Brockhaus, Sep 14 2007

Status

approved