id:A152092 - OEIS Search Results

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A152092

Smallest number m such that sigma(m) is an n-almost prime.

+0
6

2, 3, 6, 14, 21, 42, 93, 186, 381, 651, 1302, 2667, 5334, 11811, 23622, 49146, 82677, 165354, 344022, 761763, 1523526, 2752491, 5332341, 10664682, 21845397, 43690794, 85327221, 170654442, 341310837, 677207307, 1354414614, 2796546858 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(32) = 2796546858. Sigma(2796546858) = 6442450944 = 2^31*3^1 (32-almost prime).`
	CROSSREFS	`Cf. A000203.` `Sequence in context: A123041 A078557 A005537 this_sequence A087293 A106364 A006444` `Adjacent sequences: A152089 A152090 A152091 this_sequence A152093 A152094 A152095`
	KEYWORD	`nonn`
	AUTHOR	`Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 24 2008`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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