OFFSET
0,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
EXAMPLE
5 is a prime and 12*5+1=61 is also a prime. 13 and 12*13+1=157 are both primes...
MAPLE
ts_m_sophie_germain_pras := proc(n); if (isprime(n)='true' and isprime(12*n+1)='true') then RETURN(n); fi; end: seq(ts_m_sophie_germain_pras(i), i=1..2030);
MATHEMATICA
Select[Prime[Range[300]], PrimeQ[12#+1]&] (* Harvey P. Dale, Feb 06 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Jani Melik, Oct 02 2002
STATUS
approved