id:A050772 - OEIS Search Results

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Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 5 skipped primes.

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18, 24, 25, 46, 57, 161, 203, 209, 288, 319, 323, 391, 736, 798, 837, 858, 928, 930, 1035, 1088, 1089, 1218, 1300, 1376, 1690, 2254, 2418, 2478, 2673, 2842, 2871, 3045, 3220, 3325, 3458, 3510, 3588, 4186, 4508, 4617, 4824, 5054, 5180, 5248, 5472, 6069 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`a(1)=18 + (2+3+3) = 26 + (2+13) = ending prime 41. Between 18 and 41 one finds 5 primes 19, 23, 29, 31 and 37.`
	CROSSREFS	`Cf. A050703, A050710.` `Adjacent sequences: A050769 A050770 A050771 this_sequence A050773 A050774 A050775` `Sequence in context: A096282 A031407 A002505 this_sequence A086473 A076770 A105679`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.`

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.

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