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%I #21 Sep 08 2022 08:45:05
%S 1,2,4,6,16,20,24,54,56,74,90,160,180,204,210,340,430,436,466,556,584,
%T 690,760,930,936,966,986,1144,1150,1246,1406,1434,1586,1644,1700,1824,
%U 1850,1870,1910,2074,2126,2224,2260,2266,2336,2360,2536,2604,2646,2676
%N Numbers n such that n^2 + 1 and n^4 + 1 are primes.
%H Giovanni Resta, <a href="/A067662/b067662.txt">Table of n, a(n) for n = 1..10000</a> (first 5000 terms from Seiichi Manyama)
%o (Magma) [n: n in [0..10000]| IsPrime(n^2+1) and IsPrime(n^4+1)] // _Vincenzo Librandi_, Aug 07 2010
%Y Intersection of A000068 and A005574.
%K nonn
%O 1,2
%A _Benoit Cloitre_, Feb 23 2002
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