Hypotenuses of primitive Pythagorean triples in A195547 and A195548.

Terms

a(0) =1a(1) =5a(2) =13a(3) =17a(4) =89a(5) =233a(6) =305a(7) =1597a(8) =4181a(9) =5473a(10) =28657a(11) =75025a(12) =98209a(13) =514229a(14) =1346269a(15) =1762289a(16) =9227465a(17) =24157817a(18) =31622993a(19) =165580141a(20) =433494437a(21) =567451585a(22) =2971215073a(23) =7778742049a(24) =10182505537a(25) =53316291173a(26) =139583862445a(27) =182717648081