Numbers whose digits are a permutation of (0,...,m) for some m.

Terms

a(0) =0a(1) =10a(2) =102a(3) =120a(4) =201a(5) =210a(6) =1023a(7) =1032a(8) =1203a(9) =1230a(10) =1302a(11) =1320a(12) =2013a(13) =2031a(14) =2103a(15) =2130a(16) =2301a(17) =2310a(18) =3012a(19) =3021a(20) =3102a(21) =3120a(22) =3201a(23) =3210a(24) =10234a(25) =10243a(26) =10324a(27) =10342a(28) =10423a(29) =10432