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A171742
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First 4-fold intrinsically n-palindrome (given in base ten).
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22
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OFFSET
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2,1
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COMMENTS
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Given the size of the first 3-fold 6-palindrome (13 base-ten digits; see A171705 or A171741), a fifth term is going to be difficult.
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LINKS
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EXAMPLE
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a(2)=24 is 11 in base 23, 22 in base 11, 33 in base 7 and 44 in base 5.
a(3)=300 is 1A1 in base 13, 363 in base 9, 454 in base 8 and 606 in base 7.
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CROSSREFS
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KEYWORD
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more,hard,nonn,base
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AUTHOR
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STATUS
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approved
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