Subsets of natural numbers arranged in standard statistical (or Yates) order.

Terms

a(0) =0a(1) =1a(2) =2a(3) =12a(4) =3a(5) =13a(6) =23a(7) =123a(8) =4a(9) =14a(10) =24a(11) =124a(12) =34a(13) =134a(14) =234a(15) =1234a(16) =5a(17) =15a(18) =25a(19) =125a(20) =35a(21) =135a(22) =235a(23) =1235a(24) =45a(25) =145a(26) =245a(27) =1245a(28) =345a(29) =1345