Numbers k such that k and k^6 have no digits in common.

Terms

a(0) =2a(1) =3a(2) =8a(3) =9a(4) =13a(5) =14a(6) =22a(7) =33a(8) =44a(9) =52a(10) =72a(11) =77a(12) =87a(13) =92a(14) =222a(15) =322a(16) =622a(17) =7737a(18) =7878a(19) =30302a(20) =44449a(21) =72777a(22) =844844a(23) =44744744