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A152092 Smallest number m such that sigma(m) is an n-almost prime. 5
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; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(32) = 2796546858. Sigma(2796546858) = 6442450944 = 2^31*3^1 (32-almost prime).

CROSSREFS

Cf. A000203.

Sequence in context: A005537 A193093 A182756 * A187033 A087293 A106364

Adjacent sequences:  A152089 A152090 A152091 * A152093 A152094 A152095

KEYWORD

nonn

AUTHOR

Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 24 2008

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Last modified February 15 12:12 EST 2012. Contains 205783 sequences.