id:A057717 - OEIS Search Results

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The non-powers of 10.

+0
2

0, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`a(n) is the length signature of a string plus its length.`
	FORMULA	`a(n) = ceiling(log_10(a(n) + 1)) + n.` `Find k such that 10^k - (k + 1) <= n < 10^(k+1) - (k + 2), then a(n) = n + k + 1.`
	CROSSREFS	`Complement of A011557. Cf. A057716.` `Sequence in context: A045876 A033865 A118764 this_sequence A063742 A014089 A065039` `Adjacent sequences: A057714 A057715 A057716 this_sequence A057718 A057719 A057720`
	KEYWORD	`nonn`
	AUTHOR	`John Lindgren (john.lindgren(AT)Eng.Sun.COM), Oct 24 2000`
	EXTENSIONS	`Better description from Ahmed Fares (ahmedfares(AT)my-deja.com), Apr 29 2001`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research