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A265558
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a(n) = smallest base-10 palindrome m >= n such that every base-10 digit of n is <= the corresponding digit of m.
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2
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 11, 22, 33, 44, 55, 66, 77, 88, 99, 22, 22, 22, 33, 44, 55, 66, 77, 88, 99, 33, 33, 33, 33, 44, 55, 66, 77, 88, 99, 44, 44, 44, 44, 44, 55, 66, 77, 88, 99, 55, 55, 55, 55, 55, 55, 66, 77, 88, 99, 66, 66, 66, 66, 66, 66, 66, 77, 88, 99, 77, 77, 77, 77, 77, 77, 77, 77, 88, 99, 88, 88
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OFFSET
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0,3
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LINKS
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MAPLE
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PROG
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(PARI) a(n, base=10) = { my (d=digits(n, base)); for (k=1, #d\2, d[k]=d[#d+1-k]=max(d[k], d[#d+1-k])); fromdigits(d, base) } \\ Rémy Sigrist, Jun 24 2022
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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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