id:A072018 - OEIS Search Results

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A072018

GCD[n,Rev[n]] = 243 = 3^5, where Rev[x] = A004086[x].

+0
3

4899999987, 4989999897, 4999889997, 4999997889, 5889998997, 5889999969, 5898989997, 5898998988, 5899899789, 5899979979, 5899987998, 5899989699, 5899996989, 5979999879, 5988899997, 5988998898, 5989889979, 5989897998 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`m = 4899999987 = 3.3.3.3.3.157.128437 and Rev[m] = 78999999984 = 2.2.2.2.3.3.3.3.3.3.2031893, GCD = 243. Numerous but not all solutions are obtained intercalating string of 9-s between digits of A071016. Further such regular transformations exist.`
	CROSSREFS	`Cf. A004086, A055483, A069554, A071686, A072005, A072016.` `Adjacent sequences: A072015 A072016 A072017 this_sequence A072019 A072020 A072021` `Sequence in context: A128172 A050259 A015384 this_sequence A017409 A017529 A133688`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jun 05 2002`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research