10000n+1, 10000n+3, 10000n+7, 10000n+9 are all primes.

Terms

a(0) =676a(1) =1189a(2) =2515a(3) =2830a(4) =8224a(5) =9001a(6) =10621a(7) =10786a(8) =17611a(9) =18640a(10) =20983a(11) =21277a(12) =23419a(13) =28468a(14) =31450a(15) =37720a(16) =41530a(17) =41596a(18) =42025a(19) =45238a(20) =47212a(21) =49912a(22) =50992a(23) =52222a(24) =53815a(25) =65827a(26) =70786a(27) =77044a(28) =82324a(29) =88297