Sextan primes: p = (x^6 + y^6)/(x^2 + y^2).

Terms

a(0) =13a(1) =61a(2) =73a(3) =193a(4) =241a(5) =541a(6) =601a(7) =1021a(8) =1801a(9) =1873a(10) =1933a(11) =2221a(12) =3121a(13) =3361a(14) =4993a(15) =5521a(16) =6481a(17) =8461a(18) =9181a(19) =9901a(20) =10993a(21) =11113a(22) =12241a(23) =12541a(24) =13633a(25) =14173a(26) =17761a(27) =20593a(28) =21433a(29) =21661