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A043070
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a(n)=(s(n)+2)/8, where s(n)=n-th base 8 palindrome that starts with 6 (in base 8), written in decimal digits.
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1
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1, 7, 49, 50, 51, 52, 53, 54, 55, 56, 385, 394, 403, 412, 421, 430, 439, 448, 3073, 3081, 3089, 3097, 3105, 3113, 3121, 3129, 3138, 3146, 3154, 3162, 3170, 3178, 3186, 3194, 3203, 3211, 3219, 3227, 3235, 3243, 3251, 3259
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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(#+2)/8&/@Select[Range[30000], IntegerDigits[#, 8][[1]]==6&&IntegerDigits[#, 8] == Reverse[ IntegerDigits[#, 8]]&] (* Harvey P. Dale, May 07 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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EXTENSIONS
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STATUS
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approved
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