Palindromic hypotenuses in primitive Pythagorean triples.

Terms

a(0) =5a(1) =101a(2) =181a(3) =313a(4) =353a(5) =373a(6) =505a(7) =545a(8) =565a(9) =757a(10) =797a(11) =929a(12) =949a(13) =10001a(14) =10201a(15) =10301a(16) =10501a(17) =10601a(18) =12421a(19) =12721a(20) =12821a(21) =14341a(22) =14741a(23) =16061a(24) =16361a(25) =16561a(26) =16661a(27) =16861a(28) =18181a(29) =18281