Numbers decremented by their digit product produce a cube.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =71a(11) =145a(12) =167a(13) =264a(14) =361a(15) =757a(16) =1000a(17) =1439a(18) =1791a(19) =2233a(20) =3525a(21) =3627a(22) =3959a(23) =4096a(24) =4864a(25) =4995a(26) =6677a(27) =8000a(28) =8128a(29) =8672