id:A065559 - OEIS Search Results

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Smallest k such that tau(n+k) = tau(k).

+0
2

2, 3, 2, 3, 2, 5, 8, 3, 2, 3, 2, 5, 8, 3, 2, 3, 2, 5, 8, 3, 2, 7, 10, 5, 8, 3, 2, 3, 2, 7, 8, 5, 6, 3, 2, 5, 14, 3, 2, 3, 2, 5, 8, 3, 2, 7, 8, 5, 6, 3, 2, 6, 21, 5, 10, 3, 2, 3, 2, 7, 8, 5, 6, 3, 2, 5, 10, 3, 2, 3, 2, 7, 14, 5, 10, 3, 2, 5, 6, 3, 2, 7, 8, 5, 6, 3, 2, 6, 6, 7, 15, 5, 22, 3, 2, 5, 14, 3, 2 (list; graph; listen)

	OFFSET	`1,1`
	PROGRAM	`(PARI): tau(m) = {local(k, n); for(k=1, m, n=1; while(numdiv(n)!=numdiv(n+k), n++); print1(n, ", "))} tau(200)`
	CROSSREFS	`Cf. A000005.` `Sequence in context: A064652 A077600 A120223 this_sequence A087317 A086489 A015886` `Adjacent sequences: A065556 A065557 A065558 this_sequence A065560 A065561 A065562`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Nov 29 2001`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research