Numbers n such that 4n+1 is a palindromic prime.

Terms

a(0) =1a(1) =25a(2) =45a(3) =78a(4) =88a(5) =93a(6) =189a(7) =199a(8) =232a(9) =2575a(10) =2625a(11) =2650a(12) =3105a(13) =3180a(14) =3205a(15) =3585a(16) =3685a(17) =4015a(18) =4090a(19) =4140a(20) =4165a(21) =4545a(22) =4620a(23) =7753a(24) =7878a(25) =8383a(26) =8763a(27) =8788a(28) =8838a(29) =8938