Least number x such that x^n has n digits equal to k. Case k = 3.

Terms

a(0) =3a(1) =56a(2) =179a(3) =34a(4) =202a(5) =536a(6) =607a(7) =1182a(8) =1236a(9) =3875a(10) =3076a(11) =2142a(12) =4574a(13) =5378a(14) =9347a(15) =14524a(16) =2013a(17) =8403a(18) =13037a(19) =9534a(20) =20939a(21) =1987a(22) =28882a(23) =27146a(24) =16292a(25) =34546a(26) =48493a(27) =85926a(28) =52953a(29) =48318