Primes with digit sum = 50.

Terms

a(0) =599999a(1) =788999a(2) =799979a(3) =888989a(4) =889997a(5) =897899a(6) =898889a(7) =969989a(8) =979889a(9) =988979a(10) =996899a(11) =997889a(12) =998897a(13) =998969a(14) =999599a(15) =999959a(16) =1598999a(17) =1699799a(18) =1789979a(19) =1798997a(20) =1799969a(21) =1859999a(22) =1886999a(23) =1888979a(24) =1889969a(25) =1896899a(26) =1896989a(27) =1897979a(28) =1899797