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1,1
All terms are multiples of 3, a(n) = 3*A125272(n). - Zak Seidov, May 06 2013
Table of n, a(n) for n=1..45.
Reap[Do[p=Prime[i]; If[PrimeQ[p+4]&&Total[Last/@FactorInteger[p+2]]==2, Sow[p+2]], {i, 2*10^3}]][[2, 1]]
Sequence in context: A072569 A072572 A029708 * A102739 A124622 A189051
Adjacent sequences: A125212 A125213 A125214 * A125216 A125217 A125218
nonn
Zak Seidov, Nov 24 2006
approved