Internal digits of k^3 include digits of k as substring, k does not end in 0.

Terms

a(0) =56a(1) =782a(2) =5111a(3) =8089a(4) =8216a(5) =9553a(6) =11768a(7) =14357a(8) =18229a(9) =53257a(10) =64164a(11) =65137a(12) =72556a(13) =98442a(14) =213405a(15) =271516a(16) =830686a(17) =941976a(18) =1969394a(19) =2420681a(20) =2751442a(21) =4150015a(22) =5354867a(23) =7045156a(24) =9590417a(25) =9699457a(26) =10333214a(27) =13427757a(28) =21955652a(29) =31213974