A099659 a(n) is the least prime following A002279(n) repdigits.

7, 59, 557, 5557, 55579, 555557, 5555567, 55555559, 555555587, 5555555557, 55555555619, 555555555559, 5555555555593, 55555555555573, 555555555555557, 5555555555555573, 55555555555555639, 555555555555555559, 5555555555555555621, 55555555555555555567, 555555555555555555619

Offset

1,1

Links

Table of n, a(n) for n=1..21.

Example

n=2: 55 is followed by 59.

Mathematica

Table[NextPrime[5*(10^n-1)/9], {n, 1, 35}]

Crossrefs

Cf. A003618, A003617, A096497, A096498, A068104, A002275-A002283, A099656-A099668.

Sequence in context: A363105 A101487 A210397 * A358599 A135150 A077409

Adjacent sequences: A099656 A099657 A099658 * A099660 A099661 A099662

Keyword

base,nonn

Author

Labos Elemer, Nov 17 2004

Extensions

Offset corrected by Georg Fischer, Mar 12 2024

Status

approved