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A043018
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Base-7 palindromes that start with 4.
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1
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4, 32, 200, 207, 214, 221, 228, 235, 242, 1376, 1432, 1488, 1544, 1600, 1656, 1712, 9608, 9657, 9706, 9755, 9804, 9853, 9902, 9958, 10007, 10056, 10105, 10154, 10203, 10252, 10308, 10357, 10406, 10455, 10504, 10553, 10602
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Join[{4}, FromDigits[#, 7]&/@Select[Flatten[Table[Join[{4}, #, {4}]&/@ Tuples[ Range[ 0, 6], n], {n, 0, 3}], 1], #==Reverse[#]&]] (* Harvey P. Dale, Sep 13 2020 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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