Primes that become squares when prefixed with a 6.

Terms

a(0) =241a(1) =1009a(2) =3001a(3) =44809a(4) =67489a(5) =93889a(6) =145441a(7) =195121a(8) =205081a(9) =235009a(10) =285049a(11) =295081a(12) =355441a(13) =416089a(14) =538249a(15) =558721a(16) =620329a(17) =713281a(18) =744409a(19) =817321a(20) =1199329a(21) =1418569a(22) =1481281a(23) =1889689a(24) =1952641a(25) =2520649a(26) =2742241a(27) =3409369a(28) =3504961a(29) =3568729