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A359224
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Numbers whose decimal representation is the reverse of their base-7 representation.
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0
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0, 1, 2, 3, 4, 5, 6, 23, 46, 2116, 15226, 32361
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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LINKS
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EXAMPLE
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23 is a term since 23_7 = 32 which reversed is 23.
32361 is a term since 32361_7 = 163230 which reversed is 032361 and the leading 0 is disregarded.
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PROG
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(PARI) isok(n) = fromdigits(Vecrev(digits(n, 7))) == n
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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