id:A116052 - OEIS Search Results

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n+sigma(n)+sigma(sigma(n)) is a brilliant number (A078972).

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2, 3, 57, 63, 64, 83, 85, 91, 98, 133, 141, 145, 149, 154, 156, 187, 189, 232, 247, 249, 255, 263, 279, 281, 293, 310, 319, 415, 419, 425, 467, 512, 575, 589, 593, 653, 791, 799, 813, 837, 839, 970, 1019, 1103, 1113, 1145, 1247, 1259, 1427, 2183, 2223 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`1103 + sigma(1103) + sigma(sigma(1103)) = 71*73.`
	CROSSREFS	`Cf. A078972, A116051.` `Sequence in context: A072871 A041709 A000656 this_sequence A141509 A054313 A080052` `Adjacent sequences: A116049 A116050 A116051 this_sequence A116053 A116054 A116055`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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