A173448 Smallest prime(k) such that the concatenation prime(k)//prime(k+1)//...//prime(k+n-1) represents an emirp.
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
Offset: 1
Examples
a(5) = 101 because 101103107109113 = A086041(6) is the smallest emirp formed by concatenating 5 consecutive primes (101, 103, 107, 109, 113).
Extensions
Keyword:base added and definition reworded by R. J. Mathar, Feb 24 2010
More terms from Sean A. Irvine, Nov 14 2010