In the '3x+1' problem, take the sequence of starting values which set new records for the highest point of the trajectory before reaching 1 (A006884); sequence gives associated maximal value reached in the trajectory with that start.
A060410
In the '3x+1' problem, take the sequence of starting values which set new records for the highest point of the trajectory before reaching 1 (A006884); sequence gives associated maximal value reached in the trajectory with that start.
Terms
- a(0) =2a(1) =8a(2) =26a(3) =80a(4) =4616a(5) =6560a(6) =19682a(7) =20762a(8) =125252a(9) =638468a(10) =3405068a(11) =4076810a(12) =13557212a(13) =25071632a(14) =53179010a(15) =60506432a(16) =296639576a(17) =785412368a(18) =1241055674a(19) =1399161680a(20) =8601188876a(21) =12324038948a(22) =26241642656a(23) =28495741760
External references
- oeis: A060410