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A030996 Concatenation of n consecutive primes starting with the prime a(n) is a prime. 8

%I #26 Feb 18 2024 02:04:45

%S 2,2,5,2,7,113,29,107,211,691,23,11,5,71,277,181,13,307,43,223,43,167,

%T 31,23,151,29,67,383,19,53,53,277,541,37,103,127,947,79,4409,1699,13,

%U 73,31,107,751,1187,1069,859,67,229,293,47,1303,2909,1319

%N Concatenation of n consecutive primes starting with the prime a(n) is a prime.

%H Paolo P. Lava, <a href="/A030996/b030996.txt">Table of n, a(n) for n = 1..250</a> (terms 1..100 from Zak Seidov)

%Y Cf. A000040, A030997.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, _Warut Roonguthai_

%E Edited by _Charles R Greathouse IV_, Apr 30 2010

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Last modified August 1 13:11 EDT 2024. Contains 374817 sequences. (Running on oeis4.)