Smallest number whose eighth power has at least n digits.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =8a(8) =10a(9) =14a(10) =18a(11) =24a(12) =32a(13) =43a(14) =57a(15) =75a(16) =100a(17) =134a(18) =178a(19) =238a(20) =317a(21) =422a(22) =563a(23) =750a(24) =1000a(25) =1334a(26) =1779a(27) =2372a(28) =3163a(29) =4217