Concatenation of n-th prime and its reverse.

Terms

a(0) =22a(1) =33a(2) =55a(3) =77a(4) =1111a(5) =1331a(6) =1771a(7) =1991a(8) =2332a(9) =2992a(10) =3113a(11) =3773a(12) =4114a(13) =4334a(14) =4774a(15) =5335a(16) =5995a(17) =6116a(18) =6776a(19) =7117a(20) =7337a(21) =7997a(22) =8338a(23) =8998a(24) =9779a(25) =101101a(26) =103301a(27) =107701a(28) =109901a(29) =113311