%I #4 Mar 30 2012 17:27:01

%S 9901,99990001,999999000001,9999999900000001,

%T 811451682377384625400019885321,

%U 666809750614092756440997454321145572124297

%N Prime numbers p such that p^2 is a concatenation of decimal representations of m and m-1 for some integer m.

%H Max Alekseyev. <a href="/A145381/b145381.txt">Table of n, a(n) for n = 1..96</a>

%Y Prime elements of A054216.

%K base,nonn

%O 1,1

%A _Max Alekseyev_, Oct 09 2008