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A089760
Smallest prime which is a concatenation of n n-th powers. 1 is considered an n-th power for every value of n.
0
2, 11, 181, 11161, 1132321, 11172911, 128111111, 1125611111, 11512111111, 1111111102411, 1111111111177147, 11111111531441111, 1111111159432381921111, 11111111114782969111, 1111113276811111111
OFFSET
1,1
COMMENTS
Most of the terms are a permutation of 2^n or 3^n with (n-1) 1's.
EXAMPLE
a(8) = concatenation of 1,1,2^8,1,1,1,1,1.
CROSSREFS
Sequence in context: A271507 A217391 A297601 * A288556 A353930 A295246
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 22 2003
EXTENSIONS
More terms from David Wasserman, Oct 05 2005
STATUS
approved