id:A016025 - OEIS Search Results

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Least k such that (tau(k^k)+k-1)/k=n.

+0
3

1, 2, 4, 8, 16, 32, 64, 128, 6, 512, 1024, 2048, 10, 8192, 16384, 32768, 14, 15, 262144, 524288, 1048576, 2097152, 4194304, 21, 22, 33554432, 67108864, 12, 26, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 33, 34, 35 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) <= 2^(n-1); if a lesser solution k exists, then it must have more than one distinct prime factor and k < n. - Chandler`
	CROSSREFS	`Sequence in context: A133024 A060376 A047869 this_sequence A036161 A036159 A036157` `Adjacent sequences: A016022 A016023 A016024 this_sequence A016026 A016027 A016028`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com)`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 06 2005` `Definition corrected by Vladeta Jovovic, Sep 03 2005` `a(30)-a(38) from Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 05 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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