Primes with digit sum = 53.

Terms

a(0) =989999a(1) =1799999a(2) =1889999a(3) =1988999a(4) =1989899a(5) =1989989a(6) =1997999a(7) =1999799a(8) =1999889a(9) =1999979a(10) =2699999a(11) =2799899a(12) =2799989a(13) =2879999a(14) =2899997a(15) =2978999a(16) =2979989a(17) =2988899a(18) =2989799a(19) =2989997a(20) =2998997a(21) =2999879a(22) =2999897a(23) =3698999a(24) =3789899