id:A108607 - OEIS Search Results

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4-almost primes whose sum of factors is a prime.

+0
5

40, 54, 56, 88, 90, 104, 136, 184, 198, 210, 248, 250, 294, 296, 328, 350, 376, 390, 414, 424, 462, 488, 522, 536, 550, 570, 584, 664, 686, 714, 776, 798, 808, 824, 850, 856, 858, 930, 950, 954, 1014, 1048, 1062, 1110, 1190, 1208, 1210, 1218, 1256, 1274, 1278 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`40=222*5 (4-almost prime) and 2+2+2+5=11 is a prime.`
	CROSSREFS	`Cf. A107707, A108608, A108609 (resp.) 3, 5, 6 (resp.)-almost primes whose sum of factors is a prime.` `Sequence in context: A039523 A116299 A110227 this_sequence A109730 A100333 A116309` `Adjacent sequences: A108604 A108605 A108606 this_sequence A108608 A108609 A108610`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Jun 12 2005`

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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