Braille natural numbers (including zero), using "0" as digit concatenation mark.

Terms

a(0) =245a(1) =1a(2) =12a(3) =14a(4) =145a(5) =15a(6) =124a(7) =1245a(8) =125a(9) =24a(10) =10245a(11) =101a(12) =1012a(13) =1014a(14) =10145a(15) =1015a(16) =10124a(17) =101245a(18) =10125a(19) =1024a(20) =120245a(21) =1201a(22) =12012a(23) =12014a(24) =120145a(25) =12015a(26) =120124a(27) =1201245a(28) =120125a(29) =12024