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A137628 Semiprimes (p+4) associated with last prime in A137626. 3
6, 35, 185, 737, 1781, 8367, 8373, 19277, 175337, 175353, 33952823, 4377722981, 4377723017, 1242030992721, 1242030992727 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
For each p, the semiprime is p + 4.
a(n) = A137626(n) + 4. - Sean A. Irvine, Feb 13 2012
EXAMPLE
a(2)=35 because when p=29 (resp. 31), p+4=33 (resp. 35) and are semiprime (3*3 resp. 5*7).
CROSSREFS
Sequence in context: A014337 A002041 A103995 * A254826 A274373 A328331
KEYWORD
more,nonn
AUTHOR
Enoch Haga, Jan 30 2008
EXTENSIONS
a(11) from Sean A. Irvine, Feb 12 2012
a(1) corrected for consistency with change in A137626 by Sean A. Irvine, Jun 21 2018
a(12)-a(15) from Giovanni Resta, Jun 22 2018
STATUS
approved

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Last modified July 24 21:32 EDT 2024. Contains 374585 sequences. (Running on oeis4.)