id:A067172 - OEIS Search Results

Search: id:A067172

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Numbers n such that sigma(n-2)+sigma(n+2)=sigma(2n).

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4, 16, 272, 284, 604, 4556, 6904, 8413, 10463, 12070, 19004, 23290, 26284, 29944, 40312, 44252, 107557, 114616, 230987, 239134, 276476, 332022, 343793, 403196, 501008, 762078, 771130, 893606, 1013348, 1160192, 1731290, 1807016, 2066404 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Cf. A067730.` `Sequence in context: A152921 A152153 A144988 this_sequence A013089 A095956 A014731` `Adjacent sequences: A067169 A067170 A067171 this_sequence A067173 A067174 A067175`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 18 2002`
	EXTENSIONS	`a(19)-a(33) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Jan 31 2009`

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Last modified December 11 12:52 EST 2009. Contains 170569 sequences.

AT&T Labs Research