Prime numbers (together with one) whose representation in balanced ternary are palindromes.

Terms

a(0) =1a(1) =7a(2) =13a(3) =43a(4) =61a(5) =73a(6) =103a(7) =367a(8) =421a(9) =457a(10) =547a(11) =601a(12) =613a(13) =757a(14) =859a(15) =1039a(16) =1093a(17) =3823a(18) =4021a(19) =4561a(20) =4723a(21) =4759a(22) =5743a(23) =6211a(24) =6373a(25) =6481a(26) =6949a(27) =7219a(28) =7489a(29) =7933