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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
OFFSET
1,1
LINKS
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
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 23 2003
EXTENSIONS
Edited, corrected and extended by Robert G. Wilson v, Nov 26 2003
STATUS
approved