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A110677 Numbers n such that the string 3333n is prime. 0
1, 23, 31, 37, 41, 49, 67, 83, 97, 103, 119, 131, 133, 163, 199, 203, 217, 221, 233, 251, 257, 263, 277, 283, 301, 307, 311, 313, 331, 373, 383, 391, 397, 401, 419, 427, 431, 433, 439, 469, 481, 497, 509, 511, 527, 593, 601, 611, 619, 641 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

n=103 is in the sequence because  3333n = 3333103 is prime.

CROSSREFS

Sequence in context: A107934 A155107 A126719 * A169640 A026051 A141818

Adjacent sequences:  A110674 A110675 A110676 * A110678 A110679 A110680

KEYWORD

nonn,base

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 14 2005

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Last modified February 15 07:12 EST 2012. Contains 205697 sequences.