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A110338
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2n odd numbers followed by 2n-1 even numbers.
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0
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1, 3, 2, 5, 7, 9, 11, 4, 6, 8, 13, 15, 17, 19, 21, 23, 10, 12, 14, 16, 18, 25, 27, 29, 31, 33, 35, 37, 39, 20, 22, 24, 26, 28, 30, 32, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 34, 36, 38, 40, 42, 44, 46, 48, 50
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refs;
listen;
history;
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OFFSET
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1,2
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LINKS
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Table of n, a(n) for n=1..55.
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MATHEMATICA
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Riffle[TakeList[2*Range[100]-1, 2*Range[9]], TakeList[ 2*Range[100], 2*Range[ 0, 9]+1]] // Flatten (* Harvey P. Dale, Mar 01 2018 *)
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PROG
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(PARI) lista(nn) = {curo = 1; cure = 2; for (n = 1, nn, for (i = 1, 2*n, print1(curo, ", "); curo += 2; ); for (i = 1, 2*n - 1, print1(cure, ", "); cure += 2; ); ); } \\ Michel Marcus, Sep 16 2013
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CROSSREFS
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Sequence in context: A337405 A304881 A266635 * A171018 A350192 A239260
Adjacent sequences: A110335 A110336 A110337 * A110339 A110340 A110341
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KEYWORD
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easy,nonn
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AUTHOR
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Amarnath Murthy, Jul 20 2005
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STATUS
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approved
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