A089318 Smallest prime of the form an n-th power followed by digit 1.

41, 271, 811, 77761, 641, 21871, 16796161, 196831, 259374246011, 19773267431, 40961, 9688901040700000000000001, 163841, 1368800680154120519681, 1214395310965942517761, 58744031063604200188795536431, 3874204891

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Example

a(4) = 811 is the prime which is the concatenation of 3^4 and 1. 161 is not a prime.

Crossrefs

Cf. A089319.

Sequence in context: A233406 A020866 A142690 * A180475 A142768 A140013

Adjacent sequences: A089315 A089316 A089317 * A089319 A089320 A089321

Keyword

base,nonn

Author

Amarnath Murthy, Nov 03 2003

Extensions

More terms from David Wasserman, Sep 09 2005

Status

approved