a(n)^3 is smallest cube beginning with n.

Terms

a(0) =0a(1) =1a(2) =3a(3) =7a(4) =16a(5) =8a(6) =4a(7) =9a(8) =2a(9) =21a(10) =10a(11) =48a(12) =5a(13) =11a(14) =52a(15) =25a(16) =55a(17) =12a(18) =57a(19) =27a(20) =59a(21) =6a(22) =61a(23) =62a(24) =29a(25) =63a(26) =64a(27) =3a(28) =66a(29) =31