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A030655
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Pair up the numbers.
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4
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12, 34, 56, 78, 910, 1112, 1314, 1516, 1718, 1920, 2122, 2324, 2526, 2728, 2930, 3132, 3334, 3536, 3738, 3940, 4142, 4344, 4546, 4748, 4950, 5152, 5354, 5556, 5758, 5960, 6162, 6364, 6566, 6768, 6970, 7172, 7374, 7576, 7778, 7980, 8182, 8384, 8586
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listen;
history;
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internal format)
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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FromDigits[Flatten[IntegerDigits/@{#}]]&/@Partition[Range[90], 2] (* Harvey P. Dale, Sep 28 2011 *)
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PROG
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(Magma) [Seqint(Intseq(n+1) cat Intseq(n)): n in [1..86 by 2]]; // Bruno Berselli, Jun 18 2011
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CROSSREFS
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KEYWORD
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base,nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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