A072018 - OEIS

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A072018

gcd(n,R(n)) = 243 = 3^5, where R(x) = A004086(x).

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

	OFFSET	`1,1`
	EXAMPLE	`m = 4899999987 = 3.3.3.3.3.157.128437 and R(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.` `Sequence in context: A050259 A175568 A015384 * A158726 A017409 A017529` `Adjacent sequences: A072015 A072016 A072017 * A072019 A072020 A072021`
	KEYWORD	`nonn,base`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jun 05 2002`

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.