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A217937 Numbers achieving strength records in 3x+1 problem. 3
1, 63728127, 13371194527, 3743559068799, 100759293214567, 104899295810901231 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

Eric Roosendaal, 3x + 1 strength records

CROSSREFS

Cf. A217935, A217936, A217937.

Sequence in context: A172777 A172844 A116499 * A203932 A223288 A223485

Adjacent sequences:  A217934 A217935 A217936 * A217938 A217939 A217940

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 21 2012

STATUS

approved

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Last modified June 28 21:04 EDT 2022. Contains 354907 sequences. (Running on oeis4.)