%I
%S 3,4,6,7,9,16,21,22,25,39,42,51,55,60,67,90,102,132,139,142,154,156,
%T 165,177,189,204,207,210,216,219,232,237,247,289,291,310,315,352,379,
%U 396,406,454,456,457,496,501,519,531,552,561,625,645,669,687,721,729,744
%N Numbers k such that k^2  k  1 and k^2  k + 1 are twin primes.
%H Seiichi Manyama, <a href="/A131530/b131530.txt">Table of n, a(n) for n = 1..5000</a>
%o (MAGMA) [n: n in [0..500]  IsPrime(n^2n1) and IsPrime(n^2n+1)] // _Vincenzo Librandi_, Nov 23 2010
%Y Intersection of A002328 and A055494.  _Michel Marcus_, Jan 24 2018
%K nonn
%O 1,1
%A _Pierre CAMI_, Aug 26 2007
