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A173448 Smallest prime(k) such that the concatenation prime(k)//prime(k+1)//...//prime(k+n-1) represents an emirp. 0
13, 151, 353, 139, 101, 70451, 97, 15193, 3821, 9319, 7717, 103619, 10883, 18353, 108821, 701, 10091, 99251, 78497, 3559, 930043, 99787, 18671, 12251, 711751, 9293, 10861, 121921, 103099, 986189, 74287, 796567, 323003, 108707, 365779, 192377, 393901, 380251, 98479, 114343, 329729 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..41.

EXAMPLE

a(5) = 101 because 101103107109113 = A086041(6) is the smallest emirp formed by concatenating 5 consecutive primes (101, 103, 107, 109, 113).

CROSSREFS

Cf. A006567, A167518, A030996.

Sequence in context: A185405 A051475 A242576 * A097168 A305262 A296722

Adjacent sequences:  A173445 A173446 A173447 * A173449 A173450 A173451

KEYWORD

nonn,base

AUTHOR

Lekraj Beedassy, Feb 18 2010

EXTENSIONS

Keyword:base added and definition reworded by R. J. Mathar, Feb 24 2010

More terms from Sean A. Irvine, Nov 14 2010

STATUS

approved

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Last modified June 20 15:50 EDT 2021. Contains 345165 sequences. (Running on oeis4.)