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

1,1

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)).

Links

Table of n, a(n) for n=1..30.

Example

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

Crossrefs

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

Sequence in context: A163417 A247336 A158138 * A153357 A310591 A002732

Adjacent sequences: A096830 A096831 A096832 * A096834 A096835 A096836

Keyword

nonn,more

Author

Labos Elemer, Jul 14 2004

Extensions

More terms from David Wasserman, Nov 16 2007

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

Status

approved