a(n) = a(m) if a(m) has already occurred exactly once and n = m+[ m/2 ]+1, else a(n) = least positive integer that has not yet occurred.

A026338

a(n) = a(m) if a(m) has already occurred exactly once and n = m+[ m/2 ]+1, else a(n) = least positive integer that has not yet occurred.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =2a(5) =4a(6) =3a(7) =5a(8) =6a(9) =4a(10) =7a(11) =8a(12) =5a(13) =6a(14) =9a(15) =10a(16) =7a(17) =11a(18) =8a(19) =12a(20) =13a(21) =14a(22) =9a(23) =15a(24) =10a(25) =16a(26) =17a(27) =11a(28) =18a(29) =19

External references