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A082474 Numbers n such that n=phi(x)*sigma(x) for some x<=n. 0
1, 3, 8, 14, 24, 48, 60, 72, 78, 112, 120, 144, 168, 192, 234, 248, 288, 336, 360, 384, 480, 504, 528, 576, 620, 672, 720, 840, 864, 960, 1008, 1080, 1092, 1152, 1344, 1368, 1440, 1584, 1680, 1848, 1860, 1872, 1984 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..43.

CROSSREFS

Sequence in context: A062354 A135940 A126430 * A055335 A123329 A169929

Adjacent sequences:  A082471 A082472 A082473 * A082475 A082476 A082477

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Apr 27 2003

STATUS

approved

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Last modified May 25 10:17 EDT 2013. Contains 225647 sequences.