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A276665
In the '3x+1' problem, these values for the starting value set new records for both the number of steps and the highest point of trajectory before reaching 1.
1
1, 2, 3, 7, 27, 703, 26623
OFFSET
1,2
COMMENTS
Both the 3x+1 steps and the halving steps are counted.
LINKS
José Eduardo Gaboardi de Carvalho, Java program
CROSSREFS
Intersection of A006877 and A006884.
Sequence in context: A137075 A270347 A060412 * A062573 A019435 A061092
KEYWORD
nonn,more
STATUS
approved