a(1) = 1, a(2) = 2, a(n) = smallest number not the sum of cubes of >= 1 distinct earlier terms.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =10a(8) =11a(9) =12a(10) =13a(11) =14a(12) =15a(13) =16a(14) =17a(15) =18a(16) =19a(17) =20a(18) =21a(19) =22a(20) =23a(21) =24a(22) =25a(23) =26a(24) =29a(25) =30a(26) =31a(27) =32a(28) =33a(29) =34