Harmonic mean of digits is 8.

Terms

a(0) =8a(1) =88a(2) =888a(3) =6999a(4) =8888a(5) =9699a(6) =9969a(7) =9996a(8) =68999a(9) =69899a(10) =69989a(11) =69998a(12) =86999a(13) =88888a(14) =89699a(15) =89969a(16) =89996a(17) =96899a(18) =96989a(19) =96998a(20) =98699a(21) =98969a(22) =98996a(23) =99689a(24) =99698a(25) =99869a(26) =99896a(27) =99968a(28) =99986a(29) =688999