A256368 Primes arising from A098550(n), n >= 2, as smallest prime factor of gcd(A098550(n), A098550(n+2)).

2, 3, 2, 3, 2, 5, 2, 5, 2, 5, 2, 7, 2, 7, 2, 3, 2, 3, 11, 13, 11, 13, 3, 2, 3, 2, 17, 2, 17, 2, 5, 2, 5, 2, 13, 2, 7, 2, 7, 19, 3, 19, 2, 19, 2, 3, 2, 23, 2, 23, 2, 5, 2, 3, 2, 3, 2, 29, 31, 29, 31, 2, 3, 2, 11, 2, 7, 2

Offset: 2

Author

Vladimir Shevelev, Mar 26 2015

Keywords

• nonn

Comments

Conjecture: the sequence contains all primes such that the first appearances of them are in the nature order.

Links

• Peter J. C. Moses, Table of n, a(n) for n = 2..1001

Crossrefs

Cf. A098550, A256189, A256366.