id:A064491 - OEIS Search Results

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a(1) = 1, a(n+1) = a(n) + tau(a(n)).

+0
10

1, 2, 4, 7, 9, 12, 18, 24, 32, 38, 42, 50, 56, 64, 71, 73, 75, 81, 86, 90, 102, 110, 118, 122, 126, 138, 146, 150, 162, 172, 178, 182, 190, 198, 210, 226, 230, 238, 246, 254, 258, 266, 274, 278, 282, 290, 298, 302, 306, 318, 326, 330, 346, 350, 362, 366, 374 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	FORMULA	`It seems likely that there exist constants c_1 and c_2 such that c_1nlog(n) < a(n) < c_2nlog(n) for all sufficiently large n. - Franklin T. Adams-Watters, Jun 25 2008`
	CROSSREFS	`Cf. A000005.` `Sequence in context: A134886 A024193 A064550 this_sequence A120878 A137996 A080057` `Adjacent sequences: A064488 A064489 A064490 this_sequence A064492 A064493 A064494`
	KEYWORD	`nice,nonn`
	AUTHOR	`Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Oct 04 2001`
	EXTENSIONS	`Beginning of sequence corrected by T. D. Noe, Sep 13 2007`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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