id:A048132 - OEIS Search Results

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Becomes prime or 4 after exactly 10 iterations of f(x) = sum of prime factors of x.

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9314, 27849, 30993, 36398, 46142, 46405, 55686, 68653, 69765, 74416, 74924, 83718, 84934, 86662, 86696, 90177, 92915, 97533, 97629, 99895, 101823, 106538, 111498, 116182, 116225, 119005, 119618, 119874, 122506, 124414, 124467, 129236 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`f(x) = sum of prime factors with multiplicity, so that f(1500) = 2+2+3+5+5+5 = 22.`
	CROSSREFS	`Sequence in context: A013815 A013900 A100696 this_sequence A022223 A004934 A004954` `Adjacent sequences: A048129 A048130 A048131 this_sequence A048133 A048134 A048135`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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