Primes arising in A090513.

Terms

a(0) =313a(1) =727a(2) =11311a(3) =17417a(4) =21521a(5) =23623a(6) =1117111a(7) =1218121a(8) =1379137a(9) =18310183a(10) =1003111003a(11) =1031121031a(12) =1047131047a(13) =1081141081a(14) =1103151103a(15) =1131161131a(16) =1153171153a(17) =1249181249a(18) =1253191253a(19) =1273201273a(20) =1277211277a(21) =1301221301a(22) =1317231317a(23) =1321241321a(24) =1323251323