OFFSET
1,1
LINKS
K. D. Bajpai, Table of n, a(n) for n = 1..11200
EXAMPLE
7 is in the sequence because it is prime and 7^2 + 6 = 55 = 5 * 11, which is semiprime.
23 is in the sequence because it is prime and 23^2 + 6 = 535 = 5 * 107, which is semiprime.
MAPLE
MATHEMATICA
Select[Prime[Range[200]], PrimeOmega[#^2 + 6] == 2 &]
PROG
(PARI)
forprime(p=1, 10^4, if(bigomega(p^2+6)==2, print1(p, ", "))) \\ Derek Orr, Aug 03 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
K. D. Bajpai, Jul 26 2014
STATUS
approved