

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.


6



2, 8, 26, 80, 4616, 6560, 19682, 20762, 125252, 638468, 3405068, 4076810, 13557212, 25071632, 53179010, 60506432, 296639576, 785412368, 1241055674, 1399161680, 8601188876, 12324038948, 26241642656, 28495741760
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