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A068161 Smallest prime beginning and ending in at least n three's. 2
3, 33533, 3331333, 3333133333, 333331033333, 33333362333333, 333333313333333, 333333332933333333, 33333333316333333333, 3333333333133333333333, 33333333333733333333333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

a(2) =33533 is a prime that starts with 33 and ends in 33, (two 3's).

CROSSREFS

Cf. A068160.

Sequence in context: A175875 A030463 A086509 * A116313 A140656 A135760

Adjacent sequences:  A068158 A068159 A068160 * A068162 A068163 A068164

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Feb 24 2002

EXTENSIONS

Corrected and extended by Robert Gerbicz, Sep 06 2002

STATUS

approved

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Last modified May 7 16:00 EDT 2021. Contains 343652 sequences. (Running on oeis4.)