OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
For p=7, 7+3+2+1=13 is prime, which admits 7=a(4) to the sequence.
For p=19, 19+9+6+3=37 is prime, which puts 19=a(5) into the sequence.
MATHEMATICA
lst={}; Do[p=Prime[n]; If[PrimeQ[p+Floor[p/2]+Floor[p/3]+Floor[p/5]], AppendTo[lst, p]], {n, 2*6!}]; lst
Select[Prime[Range[350]], PrimeQ[Total[Floor[#/{2, 3, 5}]]+#]&] (* Harvey P. Dale, Feb 19 2012 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vladimir Joseph Stephan Orlovsky, Aug 17 2009
EXTENSIONS
Comments rephrased as examples by R. J. Mathar, Aug 20 2009
STATUS
approved