A096833 Values of n such that in the interval centered at A002110(n) = n-th primorial and of radius ceiling(log(center)) there is a single prime.

4, 6, 11, 13, 24, 66, 68, 75, 167, 171, 172, 287, 310, 352, 384, 457, 564, 590, 616, 620, 643, 849, 1391, 1552, 1613, 1849, 2122, 2647, 2673, 4413

Offset: 1

Author

Labos Elemer, Jul 14 2004

Keywords

• nonn
• more

Comments

Neighborhoods of most primorials (=center) are either empty or contain few primes. In the listed few cases a single prime arises if radius=ceiling(log(center)).

Examples

			n=6: around 30030 the prime in question is 30029.
		

Crossrefs

Cf. A096509-A096523, A096830-A096840, A002110.

Extensions

More terms from David Wasserman, Nov 16 2007

Definition revised by N. J. A. Sloane, Dec 06 2014