id:A046679 - OEIS Search Results

Search: id:A046679

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Numbers n such that number of divisors of n and sum of squares of divisors of n are relatively prime.

+0
2

2, 8, 9, 16, 18, 64, 72, 81, 128, 144, 625, 729, 1024, 1152, 1296, 1458, 2401, 4096, 5184, 5625, 5832, 6561, 8192, 9216, 10000, 11664, 13122, 15625, 21609, 28561, 31250, 32768, 38416, 40000, 46656, 50625, 52488, 59049, 65536, 83521, 90000 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`It can be shown that this is a subset of A028982.`
	CROSSREFS	`Cf. A028982, A046678 - A046981, A046983, A046985.` `Sequence in context: A047353 A032928 A056805 this_sequence A004999 A105125 A033492` `Adjacent sequences: A046676 A046677 A046678 this_sequence A046680 A046681 A046682`
	KEYWORD	`nonn`
	AUTHOR	`Labos Elemer (LABOS(AT)ana.sote.hu)`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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