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A180334
a(n) is the least number such that there are n semiprimes pq such that (p+1)(q+1) = a(n) for each semiprime.
1
9, 24, 72, 144, 576, 1080, 2160, 1440, 8640, 20160, 15120, 40320, 70560, 60480, 191520, 166320, 211680, 514080, 277200, 982800, 907200, 1663200, 831600, 720720, 2162160, 4989600, 2494800, 8648640, 5266800, 8845200, 8316000, 15724800
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OFFSET
1,1
COMMENTS
See
A180333
for the semiprimes for each n.
LINKS
Table of n, a(n) for n=1..32.
CROSSREFS
Sequence in context:
A038626
A195970
A223372
*
A223290
A121089
A362697
Adjacent sequences:
A180331
A180332
A180333
*
A180335
A180336
A180337
KEYWORD
nonn
AUTHOR
Zak Seidov
and
T. D. Noe
, Sep 08 2010
STATUS
approved
