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A075601 a(1) = 13 and then the smallest prime that is obtained by placing digits on both sides of the previous term. Or smallest prime that encompasses a(n-1). 7
13, 2131, 121313, 51213137, 3512131379, 135121313797, 21351213137977, 5213512131379777, 352135121313797771, 63521351213137977713, 16352135121313797771319, 9163521351213137977713193 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Cf. A075595, A075596, A075597, A075598, A075599, A075600, A075602.

Sequence in context: A197046 A283633 A221823 * A325216 A161588 A221927

Adjacent sequences:  A075598 A075599 A075600 * A075602 A075603 A075604

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Sep 28 2002

EXTENSIONS

Corrected and extended by Sascha Kurz, Jan 23 2003

STATUS

approved

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Last modified October 20 18:00 EDT 2021. Contains 348111 sequences. (Running on oeis4.)