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A081883 Numbers n such that the number of steps needed to reach an integer starting with n-1/4 or n+1/4 and iterating the map x-->x*ceiling(x) is the same. 0
5, 9, 21, 37, 46, 49, 53, 69, 85, 101, 113, 117, 121, 133, 137, 149, 165, 174, 177, 181, 197, 213, 217, 229, 241, 245, 261, 265, 277, 293, 302, 305, 309, 313, 325, 341, 357, 369, 373, 389, 393, 405, 421, 430, 433, 437, 441, 453, 469, 485, 497, 501, 517, 521 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

CROSSREFS

Cf. A068119.

Sequence in context: A297360 A216414 A147018 * A049744 A000323 A146131

Adjacent sequences:  A081880 A081881 A081882 * A081884 A081885 A081886

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Apr 13 2003

STATUS

approved

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Last modified March 25 03:50 EDT 2019. Contains 321450 sequences. (Running on oeis4.)