Concatenation of primitive Pythagorean triangles, sorted.

Terms

a(0) =345a(1) =51213a(2) =72425a(3) =81517a(4) =94041a(5) =116061a(6) =123537a(7) =166365a(8) =202129a(9) =284553a(10) =335665a(11) =367785a(12) =398089a(13) =485573a(14) =657297a(15) =2099101a(16) =6091109a(17) =15112113a(18) =17144145a(19) =19180181a(20) =21220221a(21) =23264265a(22) =24143145a(23) =25312313a(24) =28195197a(25) =29420421a(26) =31480481