Primes that become squares when prefixed with an 8.

Terms

a(0) =41a(1) =281a(2) =5849a(3) =8209a(4) =11801a(5) =29921a(6) =33569a(7) =51929a(8) =70489a(9) =77969a(10) =128201a(11) =139609a(12) =196769a(13) =219689a(14) =346321a(15) =415801a(16) =450649a(17) =532241a(18) =543929a(19) =602489a(20) =625969a(21) =684809a(22) =743849a(23) =755681a(24) =767521a(25) =922169a(26) =934121a(27) =946081a(28) =958049