Primes whose sum of digits is the perfect number 28.

Terms

a(0) =1999a(1) =3889a(2) =4789a(3) =4969a(4) =4987a(5) =5689a(6) =5779a(7) =5869a(8) =6679a(9) =6949a(10) =6967a(11) =7489a(12) =7669a(13) =7687a(14) =7759a(15) =7867a(16) =7993a(17) =8389a(18) =8677a(19) =8839a(20) =8893a(21) =8929a(22) =9199a(23) =9397a(24) =9649a(25) =9739a(26) =9829a(27) =9883a(28) =9973a(29) =12799