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A165067
Consider the base-6 Kaprekar map x->K(x) described in
A165051
. Sequence gives the smallest number that belongs to a cycle of length n under repeated iteration of this map, or -1 if there is no cycle of length n
7
0, 4305, 16840
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OFFSET
1,2
COMMENTS
Known values (to 100 base-6 digits):
a(1) = 0 (base 10) = 0 (base 6)
a(2) = 4305 (base 10) = 31533 (base 6)
a(3) = 16840 (base 10) = 205544 (base 6)
a(6) = 430 (base 10) = 1554 (base 6)
a(7) = 895275 (base 10) = 31104443 (base 6)
LINKS
Table of n, a(n) for n=1..3.
Index entries for the Kaprekar map
CROSSREFS
Cf.
A165051
,
A165055
,
A165056
,
A165058
,
A165060
,
A165062
.
In other bases:
A153881
(base 2),
A165008
(base 3),
A165028
(base 4),
A165047
(base 5),
A165086
(base 7),
A165106
(base 8),
A165126
(base 9),
A151959
(base 10).
Sequence in context:
A124596
A224522
A210263
*
A236881
A190929
A055153
Adjacent sequences:
A165064
A165065
A165066
*
A165068
A165069
A165070
KEYWORD
base
,
nonn
,
bref
AUTHOR
Joseph Myers
, Sep 04 2009
STATUS
approved
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Last modified March 19 09:40 EDT 2024. Contains 370981 sequences. (Running on oeis4.)