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A155053 Primes n with nonprime smallest digit of prime(n).

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%I A155053 #18 Mar 29 2014 05:21:33
%S A155053 5,7,11,13,19,29,31,37,41,43,47,53,67,79,83,89,97,101,113,127,157,163,
%T A155053 167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,
%U A155053 263,269,271,277,281,283,293,307,311,313,317,331,347,349,353,359,379,397,409,421,431,433,439,443,449,467,479,491,523,541,557,563,569,571,577,601,613,617,619,641,643,647,653,673,677,683,691,701,709,719,727,743,751,757,761,769
%N A155053 Primes n with nonprime smallest digit of prime(n).
%H A155053 Vincenzo Librandi, <a href="/A155053/b155053.txt">Table of n, a(n) for n = 1..1000</a>
%e A155053 a(1) = 5 corresponds to the fact that the fifth prime is 11, the smallest digit of which is 1, which is nonprime.
%e A155053 a(2) = 7: the seventh prime is 17, the smallest digit of which is 1, which is nonprime.
%e A155053 a(3) = 11: the eleventh prime is 31, the smallest digit of which is 1, which is, again, nonprime.
%t A155053 Select[Prime[Range[150]], !PrimeQ[Min[IntegerDigits[Prime[#]]]] &] (* _Harvey P. Dale_, Nov 25 2010 *)
%Y A155053 Cf. A154981.
%K A155053 nonn,base,less
%O A155053 1,1
%A A155053 _Juri-Stepan Gerasimov_, Jan 19 2009
%E A155053 Corrected (19 inserted, 1673 replaced by 167) by _R. J. Mathar_, May 05 2010
%E A155053 More terms from _Harvey P. Dale_, Nov 25 2010