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A153662 Numbers k such that the fractional part of (3/2)^k is less than 1/k. +0
24
1, 2, 4, 7, 3328, 3329, 4097, 12429, 12430, 12431, 18587, 44257, 112896, 129638 (list; graph; listen)
OFFSET

1,2

COMMENT

Numbers k such that fract((3/2)^k) < 1/k, where fract(x) = x-floor(x).

The next such number must be greater than 305000.

EXAMPLE

a(4)=7 since fract((3/2)^7)=0.0859375<1/7, but fract((3/2)^5)=0.59375>=1/5 and fract((3/2)^6)=0.390625>=1/6.

CROSSREFS

Cf. A002379, A153661, A153663, A153664, A153665, A153666, A153667, A153668.

Sequence in context: A004577 A076719 A103009 this_sequence A063864 A119927 A096255

Adjacent sequences: A153659 A153660 A153661 this_sequence A153663 A153664 A153665

KEYWORD

nonn,more

AUTHOR

Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Dec 31 2008

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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.


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