A323537 Primes p such that p - k and p + k have the same number of prime factors (with multiplicity), for k = 1..8.

409476689, 567234347, 626039111, 1072153139, 1496271467, 2076082213, 2624039507, 2727032857, 3211049893, 3735161737, 5378782091, 6126967991, 6945015541, 6976654453, 8002150391, 8363830667, 9010299827, 9238046989, 9559151653, 10108444091, 10673561207, 11220524747, 11755487027

Offset: 1

Author

Zak Seidov, Jan 17 2019

Keywords

• nonn

Comments

First six terms such that k_max = 9: 6945015541, 9010299827, 13680125387, 18434278453, 20011563589, 22661476973.

First case of k_max = 10: 47298912347.

Larger cases of k_max?

Crossrefs

Subsequence of A323536.

Cf. A115103.

Formula

{primes p: A001222(p+k)=A001222(p-k) for all k=1..8}