OFFSET
1,1
COMMENTS
The prime numbers in this sequence are of the form (14i-3) with i=(level(n)+1)/2, level(n) defined in A117563.
LINKS
Remi Eismann, Table of n, a(n) for n=1..10000
FORMULA
Primes p such that (1) p = 53 or 67 mod 70 and (2) p+4 is prime. - Charles R Greathouse IV, Sep 17 2022
a(n) = Omega(n log^2 n). - Charles R Greathouse IV, Sep 17 2022
PROG
(PARI) forprimestep(p=67, 1e4, 14, t=p%5; if((t==2 || t==3) && isprime(p+4), print1(p", "))) \\ Charles R Greathouse IV, Sep 17 2022
(PARI) p=67; forprime(q=p+2, 1e4, if(q-p==4 && (p%70==53 || p%70==67), print1(p", ")); p=q) \\ Charles R Greathouse IV, Sep 17 2022
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Rémi Eismann, Jun 01 2006, May 04 2007
STATUS
approved