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Primes in either the numerator or denominator of continued fraction convergents to Pi.
1

%I #9 Apr 20 2013 19:08:00

%S 3,7,113,103993,833719,265381,4272943,411557987,842468587426513207,

%T 7809723338470423412693394150101387872685594299

%N Primes in either the numerator or denominator of continued fraction convergents to Pi.

%t Select[Flatten[{Numerator[#],Denominator[#]}&/@Convergents[Pi,500]],PrimeQ]

%K nonn

%O 1,1

%A _Harvey P. Dale_, Apr 20 2013