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%I #9 May 01 2013 20:59:23
%S 41,59,83,107,113,137,139,181,197,211,229,283,307,313,317,331,337,373,
%T 379,421,457,499,541,547,577,613,643,709,757,853,877,883,907,1093,1213
%N Primes that can be represented exactly in two ways as a^2 + b^2 + c^2, 0 < a <= b <= c.
%C This sequence is probably complete. Is there a proof of this?
%C There are no more terms < 10^7. - _Donovan Johnson_, Mar 22 2012
%e {p,a,b,c}:
%e {41,1,2,6}, {41,3,4,4}
%e {59,1,3,7}, {59,3,5,5}
%e {83,1,1,9}, {83,3,5,7}
%e {107,1,5,9}, {107,3,7,7}.
%Y Cf. A181786, A210311.
%K nonn
%O 1,1
%A _Zak Seidov_, Mar 20 2012