A141282 Least prime p such that p-6^n, ..., p-6, p, p+6, ... and p+6^n are primes.

11, 47, 233, 11459317

Offset

1,1

Comments

This pattern is impossible for n >= 5. See A141281.

Links

Table of n, a(n) for n=1..4.

Formula

a(1) = A006489(1), a(2) = A141279(1), a(3) = A141280(1), a(4) = A141281(1).

Example

a(4) = 11459317 as this is the least prime p such that p-6^4, p-6^3, p-6^2, p-6, p, p+6, p+6^2, p+6^3 and p+6^4 are all prime. The nine primes are 11458021, 11459101, 11459281, 11459311, 11459317, 11459323, 11459353, 11459533 and 11460613.

Crossrefs

Cf. A006489, A141279, A141280, A141281.

Sequence in context: A059323 A267614 A123984 * A336181 A354590 A067355

Adjacent sequences: A141279 A141280 A141281 * A141283 A141284 A141285

Keyword

fini,full,nonn

Author

Rick L. Shepherd, Jun 22 2008

Status

approved