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A020451 Primes that contain digits 1 and 3 only. 1
3, 11, 13, 31, 113, 131, 311, 313, 331, 3313, 3331, 11113, 11131, 11311, 13313, 13331, 31333, 33113, 33311, 33331, 113111, 113131, 131111, 131113, 131311, 311111, 313133, 313331, 313333, 331333, 333131, 333331, 1111333, 1131113, 1131131 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A111488 A125308 A199303 * A018450 A119145 A168454

Adjacent sequences:  A020448 A020449 A020450 * A020452 A020453 A020454

KEYWORD

nonn,base

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.