id:A050709 - OEIS Search Results

Search: id:A050709

Displaying 1-1 of 1 results found.

page 1

Prime reached after 5 iterations of composite added to sum of prime factors.

+0
2

49, 50, 52, 56, 84, 88, 169, 176, 180, 198, 220, 302, 322, 336, 339, 363, 364, 372, 387, 402, 406, 407, 424, 429, 434, 442, 492, 494, 508, 552, 553, 562, 589, 612, 628, 633, 650, 708, 724, 744, 760, 788, 816, 819, 843, 848, 860, 861, 862, 870, 872, 896, 918 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`Iteration 1 -> 49 = 7.7 so 49 + (7+7) = 49 + 14 = 63 and composite.` `Iteration 2 -> 63 = 3.3.7 so 63 + (3+3+7) = 63 + 13 = 76 and composite.` `Iteration 3 -> 76 = 2.2.19 so 76 + (2+2+19) = 76 + 23 = 99 and composite.` `Iteration 4 -> 99 = 3.3.11 so 99 + (3+3+11) = 99 + 17 = 116 and composite.` `Iteration 5 -> 116 = 2.2.29 so 116 + (2+2+29) = 116 + 33 = 149 and prime.`
	CROSSREFS	`Cf. A050703-A050710.` `Sequence in context: A027647 A090094 A165870 this_sequence A037412 A080201 A042199` `Adjacent sequences: A050706 A050707 A050708 this_sequence A050710 A050711 A050712`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.`

page 1

Search completed in 0.002 seconds

Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research