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A090506 Least number beginning with n such that every concatenation is a prime. 1
11, 23, 31, 419, 523, 63, 741, 81, 933, 1077, 117, 1257, 137, 1441, 1523, 16111, 1731, 1829, 1977, 20091, 21151, 221, 23059, 24059, 2569, 2621, 2769, 2883, 2913, 3087, 319, 32099, 33033, 3483, 35193, 3607, 37841, 3859, 39489, 4083, 41333, 42213 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Cf. A090507.
Sequence in context: A090920 A344175 A126330 * A250215 A208326 A097657
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Dec 06 2003
EXTENSIONS
More terms from David Wasserman, Dec 16 2005
STATUS
approved

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Last modified July 14 12:15 EDT 2024. Contains 374318 sequences. (Running on oeis4.)