Sorted factorial and k-factorial numbers (numbers of form k-1 excluded).

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =16a(5) =21a(6) =24a(7) =45a(8) =96a(9) =120a(10) =175a(11) =288a(12) =315a(13) =416a(14) =441a(15) =640a(16) =720a(17) =891a(18) =1200a(19) =1573a(20) =2016a(21) =2535a(22) =2835a(23) =3136a(24) =3825a(25) =4608a(26) =5040a(27) =5491a(28) =6480a(29) =7581