This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A138044 #2 Mar 31 2012 10:26:07 %S A138044 81517,202129,6091109,19180181,68285293,92525533,120391409,145408433, %T A138044 168775793,205828853,225272353,261380461,300589661,5598401009, %U A138044 6458121037,7059921217,7999601249,8536123613,19521082117,22814351453 %N A138044 Primes formed from the concatenation of primitive Pythagorean triples. %F A138044 Prime terms of A138043. %e A138044 Entries 7999601249 and 8536123613,for instance,are primes obtained respectively from the primitive Pythagorean triples (799,960,1249,) and (85,3612,3613). %K A138044 nonn,base %O A138044 1,1 %A A138044 _Lekraj Beedassy_, Mar 02 2008