Primes which can be expressed as a sum of distinct powers of 3.

Terms

a(0) =3a(1) =13a(2) =31a(3) =37a(4) =109a(5) =271a(6) =283a(7) =337a(8) =733a(9) =739a(10) =757a(11) =769a(12) =811a(13) =823a(14) =1009a(15) =1063a(16) =1093a(17) =2269a(18) =2281a(19) =2467a(20) =2521a(21) =2539a(22) =2551a(23) =2917a(24) =2953a(25) =3001a(26) =3037a(27) =3163a(28) =3169a(29) =3187