A096834 Singular primes mentioned in A096833 around the listed primorials.

211, 30029, 200560490131, 304250263527209, 23768741896345550770650537601358309

Offset

1,1

Comments

Neighborhoods of most primorials (=center) are either empty or poor of primes. The listed primes arise if center=A002110(A096833(n)), while radius=ceiling(log(center)).

The subsequent terms are too large to include: a(6) = A002110(66)-1, which has 131 digits. a(7) = A002110(68)-1, which has 136 digits. a(8) = A002110(75)+1, which has 154 digits. - David Wasserman, Nov 16 2007

Links

Table of n, a(n) for n=1..5.

Example

n=6: around 30030, the prime in question is 30029;
n=66: around A002110[66], the single prime has more than 121 decimal digits.

Crossrefs

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

Sequence in context: A093732 A116075 A276462 * A013547 A181002 A323426

Adjacent sequences: A096831 A096832 A096833 * A096835 A096836 A096837

Keyword

nonn

Author

Labos Elemer, Jul 14 2004

Status

approved