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A089773 Smallest prime of the form 1 followed by a perfect power. 1
11, 19, 127, 149, 181, 1289, 1361, 11369, 11681, 12197, 12401, 12601, 12809, 13249, 13721, 14489, 15329, 16561, 16889, 17569, 17921, 19801, 110609, 114161, 114641, 119321, 119881, 121609, 122201, 125921, 132761, 135721, 135937, 136481, 140401 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

EXAMPLE

a(4) = 181: 1 followed by 3^4.

MATHEMATICA

Select[ Map[ FromDigits, Join[{1}, IntegerDigits[ # ]] & /@ Union[ Join[{1}, Flatten[ Table[n^i, {n, 2, Sqrt[10^5]}, {i, 2, Log[n, 10^5]}]]]]], PrimeQ[ # ] &]

CROSSREFS

Cf. A001597.

Sequence in context: A199329 A121132 A238332 * A048389 A163151 A020457

Adjacent sequences:  A089770 A089771 A089772 * A089774 A089775 A089776

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Nov 23 2003

EXTENSIONS

Edited, corrected and extended by Robert G. Wilson v, Nov 26 2003

STATUS

approved

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Last modified May 25 12:30 EDT 2019. Contains 323568 sequences. (Running on oeis4.)