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A069569
a(n) = smallest prime that can be written in base 10 using just n n's.
3
2, 13, 223, 2333, 44449, 555557, 16666669, 77767777, 888888883, 9199999999, 1010101010010101010107, 11111111111111111111111, 12112121212121212121212127, 131131313131313131313131313, 141414014141414141414141414149, 15151151515151515151515151515159
OFFSET
0,1
COMMENTS
For n > 9 the smallest prime obtained by inserting digits between the n's.
LINKS
EXAMPLE
The smallest prime containing no 0's is 2, so a(0) = 2.
CROSSREFS
Sequence in context: A078702 A259795 A365593 * A255882 A015196 A236903
KEYWORD
nonn,base
AUTHOR
Amarnath Murthy, Mar 24 2002
EXTENSIONS
Edited, corrected and extended by Robert G. Wilson v, Mar 27 2002
Further corrected and extended by Sean A. Irvine, May 05 2024
STATUS
approved