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A046238
Cubes which are palindromes in base 7.
1
0, 1, 8, 64, 512, 4096, 125000, 1000000, 8000000, 40707584, 325660672, 2605285376, 13858588808, 110868710464, 886949683712, 4748408986112, 37987271888896, 303898175111168, 1628455122125000, 13027640977000000
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OFFSET
1,3
LINKS
Table of n, a(n) for n=1..20.
Patrick De Geest,
World!Of Numbers
, Palindromic cubes in bases 2 to 17.
FORMULA
a(n) =
A046237
(n)^3. -
Andrew Howroyd
, Aug 10 2024
MATHEMATICA
Select[Range[0, 250000]^3, IntegerDigits[#, 7]==Reverse[IntegerDigits[#, 7]]&] (*
Harvey P. Dale
, Oct 11 2022 *)
CROSSREFS
Intersection of
A029954
and
A000578
.
Cf.
A046237
.
Sequence in context:
A001018
A097682
A050738
*
A046252
A074113
A074116
Adjacent sequences:
A046235
A046236
A046237
*
A046239
A046240
A046241
KEYWORD
nonn
,
base
AUTHOR
Patrick De Geest
, May 15 1998
EXTENSIONS
Offset corrected by
Andrew Howroyd
, Aug 10 2024
STATUS
approved