

A173448


Smallest prime(k) such that the concatenation prime(k)//prime(k+1)//...//prime(k+n1) 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
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OFFSET

1,1


LINKS



EXAMPLE

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


CROSSREFS



KEYWORD

nonn,base


AUTHOR



EXTENSIONS

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


STATUS

approved



