%I #2 Mar 31 2012 10:26:07
%S 81517,202129,6091109,19180181,68285293,92525533,120391409,145408433,
%T 168775793,205828853,225272353,261380461,300589661,5598401009,
%U 6458121037,7059921217,7999601249,8536123613,19521082117,22814351453
%N Primes formed from the concatenation of primitive Pythagorean triples.
%F Prime terms of A138043.
%e Entries 7999601249 and 8536123613,for instance,are primes obtained respectively from the primitive Pythagorean triples (799,960,1249,) and (85,3612,3613).
%K nonn,base
%O 1,1
%A _Lekraj Beedassy_, Mar 02 2008