OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..500
EXAMPLE
6*2*5 = 60, {59, 61} twin primes.
6*5*5 = 150, {149, 151} twin primes.
6*3*11 = 198, {197, 199} twin primes.
MATHEMATICA
t = Sort[ Flatten[ Table[6Prime[i]Prime[j], {i, 125}, {j, i}]]]; Take[ Select[t, PrimeQ[ # - 1] && PrimeQ[ # + 1] &] - 1, 44] (* Robert G. Wilson v, Mar 24 2005 *)
Take[Union[Select[6#-1&/@Times@@@Tuples[Prime[Range[200]], 2], And@@ PrimeQ[ {#, #+2}]&]], 50] (* Harvey P. Dale, May 22 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Mar 15 2005
EXTENSIONS
More terms from Robert G. Wilson v, Mar 24 2005
STATUS
approved