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A076641
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Integers read backwards, but with repetitions omitted.
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2
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 21, 31, 41, 51, 61, 71, 81, 91, 12, 22, 32, 42, 52, 62, 72, 82, 92, 13, 23, 33, 43, 53, 63, 73, 83, 93, 14, 24, 34, 44, 54, 64, 74, 84, 94, 15, 25, 35, 45, 55, 65, 75, 85, 95, 16, 26, 36, 46, 56, 66, 76, 86, 96, 17, 27, 37, 47, 57, 67, 77, 87, 97
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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COMMENTS
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Although this is a list, it seems most natural here to have offset 0. - N. J. A. Sloane, Dec 09 2020
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LINKS
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EXAMPLE
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10 backwards is 01=1, but 1 already appears, so omit it.
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MAPLE
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s := (L::list)->sum(L[i]*10^(nops(L)-i), i=1..nops(L)); d := (X::posint)->convert(X, base, 10); SD := K->[seq(s(d(k)), k=1..K)];
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PROG
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(Haskell)
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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Francois Jooste (phukraut(AT)hotmail.com), Oct 23 2002
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EXTENSIONS
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STATUS
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approved
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