A092992 Smallest prime of the form concatenation of prime(n) with itself followed by a 1.

2221, 31, 555555555551, 71, 1111111111111111111, 131, 1717171717171717171717171717171, 191, 2323231, 29292929291, 311, 3737373737373737373737371, 41411, 431

Offset

1,1

Comments

Next prime, if it exists, is > 10^70. - Sam Alexander, Jan 09 2005

Links

Table of n, a(n) for n=1..14.

Crossrefs

Cf. A092993, A092994, A092995.

Sequence in context: A223159 A223158 A241963 * A210712 A260175 A166580

Adjacent sequences: A092989 A092990 A092991 * A092993 A092994 A092995

Keyword

base,nonn

Author

Amarnath Murthy, Mar 28 2004

Extensions

More terms from Sam Alexander, Jan 09 2005

Status

approved