Odd numbers which take a record number of steps to reach {1, 9, or 33} under iteration of the map described in the comments section of A135730.
A261674
Odd numbers which take a record number of steps to reach {1, 9, or 33} under iteration of the map described in the comments section of A135730.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =11a(4) =17a(5) =35a(6) =49a(7) =65a(8) =89a(9) =113a(10) =129a(11) =173a(12) =305a(13) =609a(14) =641a(15) =1281a(16) =1353a(17) =1805a(18) =2417a(19) =2849a(20) =3377a(21) =5961a(22) =7949a(23) =11009a(24) =13857a(25) =14601a(26) =19469a(27) =22049a(28) =36545a(29) =43313
External references
- oeis: A261674