id:A046345 - OEIS Search Results

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Sum of the prime factors of the palindromic composite numbers (counted with multiplicity).

+0
3

4, 5, 6, 6, 13, 14, 15, 16, 16, 18, 17, 17, 40, 22, 50, 30, 25, 103, 57, 42, 35, 24, 17, 133, 25, 52, 77, 104, 36, 43, 21, 25, 134, 105, 31, 59, 40, 44, 229, 37, 84, 26, 34, 106, 108, 20, 112, 114, 45, 118, 33, 24, 29, 106, 24, 315, 60, 38, 49, 45, 30, 23, 38, 108, 242, 78 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`a(60)=45 because 666 = 2 * 3 * 3 * 37 and 45 = 2 + 3 + 3 + 37.`
	CROSSREFS	`Cf. A046343, A046344.` `Adjacent sequences: A046342 A046343 A046344 this_sequence A046346 A046347 A046348` `Sequence in context: A022911 A116962 A023846 this_sequence A004445 A114546 A067471`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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