A090506 Least number beginning with n such that every concatenation is a prime.

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

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Crossrefs

Cf. A090507.

Sequence in context: A090920 A344175 A126330 * A250215 A208326 A097657

Adjacent sequences: A090503 A090504 A090505 * A090507 A090508 A090509

Keyword

base,nonn

Author

Amarnath Murthy, Dec 06 2003

Extensions

More terms from David Wasserman, Dec 16 2005

Status

approved