Base-2 expansion of a(n) encodes the steps where numbers of the form 4k+1 are encountered when map x -> A252463(x) is iterated down to 1, starting from x=n.
A292381
Base-2 expansion of a(n) encodes the steps where numbers of the form 4k+1 are encountered when map x -> A252463(x) is iterated down to 1, starting from x=n.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =4a(4) =9a(5) =8a(6) =18a(7) =8a(8) =9a(9) =18a(10) =36a(11) =16a(12) =73a(13) =36a(14) =16a(15) =16a(16) =147a(17) =18a(18) =294a(19) =36a(20) =37a(21) =72a(22) =588a(23) =32a(24) =19a(25) =146a(26) =16a(27) =72a(28) =1177a(29) =32
External references
- oeis: A292381