A175606 Primes p of the form 4*k+3 such that p+2 is prime and p-1 is nonsquarefree.

1151, 1451, 1667, 3251, 3851, 4019, 5651, 6359, 6551, 6959, 7547, 11351, 11831, 12251, 13691, 15731, 15887, 16451, 17987, 18131, 18251, 19751, 20231, 22091, 26951, 27539, 28751, 30851, 31151, 32831, 35051, 37571, 38651, 38711, 40151, 43319, 44279, 44771, 45179

Offset: 1

Author

Zak Seidov, Jul 22 2010

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Subsequence of A071698.

Cf. A089188.

Programs

Mathematica

Select[Range[3,99299,4],!SquareFreeQ[ #-1]&&PrimeQ[ # ]&&PrimeQ[ #+2]&]

Extensions

Name corrected by Amiram Eldar, Apr 23 2022