

A226681


Conjectured recordbreaking maximal values, for ascending positive integers k, of the minimal elements of the primitive cycles of positive integers under iteration by the Collatzlike 3xk function.


3



17, 19, 73, 115, 4819, 16099, 61555, 1457663, 3735185, 17904629, 21111517, 29931557, 222264329
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