OFFSET
1,1
LINKS
Harry J. Smith, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[10^5], PrimeQ[ # - 1] && PrimeQ[ # - 3] && PrimeQ[ # - 7] && PrimeQ[ # - 9] &]
PROG
(PARI) { n=0; for (m=1, 10^9, if(isprime(m - 1) && isprime(m - 3) && isprime(m - 7) && isprime(m - 9), write("b064974.txt", n++, " ", m); if (n==1000, return)) ) } \\ Harry J. Smith, Oct 02 2009
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Robert G. Wilson v, Oct 30 2001
STATUS
approved