id:A124074 - OEIS Search Results

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Consider the map which sends a number m to m - reverse(m) if that is positive, otherwise to m + reverse(m). Sequence gives those numbers which reach a nonzero cycle under repeated application of this map.

+0
1

119, 129, 169, 179, 188, 198, 200, 210, 218, 220, 228, 230, 240, 249, 250, 260, 268, 270, 278, 280, 287, 290, 297, 299, 300, 301, 310, 311, 317, 320, 321, 327, 330, 331, 340, 341, 348, 349, 350, 351, 360, 361, 367, 370, 371, 377, 380, 381, 386, 389, 390 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`119 is a member because:` `119+911=1030 (since the difference is negative)` `1030-0301=729 (since the difference is positive)` `729+927=1656` `1656+6561=8217` `8217-7128=1089` `1089+9801=10890` `10890-09801=1089: so the terms are cyclic.`
	CROSSREFS	`Cf. A001232.` `Sequence in context: A013683 A071843 A049048 this_sequence A103154 A039557 A095629` `Adjacent sequences: A124071 A124072 A124073 this_sequence A124075 A124076 A124077`
	KEYWORD	`base,nonn`
	AUTHOR	`Sebastien DUMORTIER (sdumortier(AT)ac-limoges.fr), Nov 05 2006`

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.

AT&T Labs Research