id:A097158 - OEIS Search Results

Search: id:A097158

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Numbers that set a new record for iterations needed to reach 0 under f(x) = reverse(x) - maxdigit(x).

+0
6

1, 11, 12, 15, 25, 36, 104, 108, 197, 1009, 1022, 1052, 1073, 1801, 10004, 10005, 10051, 10062, 10071, 10081, 10092, 14991, 19982, 19991, 100092, 100191, 101973, 289101, 1000083, 1000092, 1020991, 1099791, 1999991, 10001091, 10001991 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Where records occur in A097154. It is easy to find numbers that require a lot of iterations to reach zero; e.g. 10^110+2 takes 200.`
	CROSSREFS	`Cf. A097153, A097154, A097155, A097156, A097157.` `Sequence in context: A128997 A139138 A113600 this_sequence A072239 A079350 A070605` `Adjacent sequences: A097155 A097156 A097157 this_sequence A097159 A097160 A097161`
	KEYWORD	`base,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Aug 01 2004`
	EXTENSIONS	`a(33) to a(35) from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Aug 14 2004`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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