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A037904
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Greatest digit of n - least digit of n.
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23
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0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 8, 7, 6, 5, 4, 3, 2, 1, 0, 1, 9
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,13
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COMMENTS
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LINKS
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MAPLE
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f:= n -> (max-min)(convert(n, base, 10)):
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MATHEMATICA
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f[n_] := Block[{d = IntegerDigits[n]}, Max[d] - Min[d]]; Table[ f[n], {n, 1, 15}]
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PROG
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(Haskell)
a037904 = f 9 0 where
f u v 0 = v - u
f u v z = f (min u d) (max v d) z' where (z', d) = divMod z 10
(Python)
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CROSSREFS
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KEYWORD
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nonn,base,nice
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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