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A106326 Smallest odd semiprime not less than n. 2
9, 9, 9, 9, 9, 9, 9, 9, 9, 15, 15, 15, 15, 15, 15, 21, 21, 21, 21, 21, 21, 25, 25, 25, 25, 33, 33, 33, 33, 33, 33, 33, 33, 35, 35, 39, 39, 39, 39, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 51, 51, 55, 55, 55, 55, 57, 57, 65, 65, 65, 65, 65, 65, 65, 65, 69, 69, 69, 69, 77, 77, 77 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(A046315(n)) = A046315(n).
LINKS
MATHEMATICA
sos[n_]:=Module[{s=If[OddQ[n], n, n+1]}, While[PrimeOmega[s]!=2, s=s+2]; s]; Table[sos[n], {n, 80}] (* Harvey P. Dale, Jun 14 2015 *)
CROSSREFS
Cf. A106325.
Sequence in context: A010734 A066568 A291514 * A245400 A088471 A087416
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 29 2005
STATUS
approved

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Last modified March 19 01:22 EDT 2024. Contains 370952 sequences. (Running on oeis4.)