%I #14 Feb 19 2024 01:54:13

%S 5,11,17,31,41,89,229,239,263,307,313,317,353,359,383,389,401,409,439,

%T 449,563,619,701,761,773,787,797,827,907,929,1061,1163,1409,1447,1579,

%U 1597,1619,1621,1637,1697,1877,1933,2011,2029,2129,2131

%N Primes which when concatenated with next two primes are also prime.

%H Paolo P. Lava, <a href="/A030468/b030468.txt">Table of n, a(n) for n = 1..2500</a>

%Y Cf. A000040.

%K nonn,base

%O 1,1

%A _Patrick De Geest_