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A100904 Numbers k such that (10^k+1)^2-2 is prime. 3

%I #17 Feb 22 2024 02:21:41

%S 22,351,1061,410997

%N Numbers k such that (10^k+1)^2-2 is prime.

%H Steven Harvey, <a href="http://harvey563.tripod.com/Carol_Kynea.txt">Carol and Kynea Primes</a>.

%o (PARI) is(n)=ispseudoprime((10^n+1)^2-2) \\ _Charles R Greathouse IV_, Feb 19 2016

%K nonn,more

%O 1,1

%A _Ray Chandler_, Nov 21 2004

%E a(4) from _Ryan Propper_, Feb 21 2024

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Last modified April 24 13:24 EDT 2024. Contains 371955 sequences. (Running on oeis4.)