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A141259
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a(n) == {0,1,3,4,5,7,9,11} mod 12; n>0.
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2
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1, 3, 4, 5, 7, 9, 11, 12, 13, 15, 16, 17, 19, 21, 23, 24, 25, 27, 28, 29, 31, 33, 35, 36, 37, 39, 40, 41, 43, 45, 47, 48, 49, 51, 52, 53, 55, 57, 59, 60, 61, 63, 64, 65, 67, 69, 71, 72, 73, 75, 76, 77, 79, 81, 83, 84, 85, 87, 88, 89, 91, 93, 95, 96, 97, 99
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OFFSET
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1,2
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COMMENTS
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LINKS
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FORMULA
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a(n) = {0,1,3,4,5,7,9,11} mod 12; n>0.
G.f. (1+x)*(x^5+x^3+1) / ( (x^2+1)*(x^4+1)*(x-1)^2 ). - R. J. Mathar, Nov 21 2011
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EXAMPLE
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a(16) = 24, == 0 mod 12.
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MATHEMATICA
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Select[Range[200], MemberQ[{0, 1, 3, 4, 5, 7, 9, 11}, Mod[#, 12]]&] (* Harvey P. Dale, Feb 20 2014 *)
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PROG
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(Magma) [n: n in [1..100]|n mod 12 in {0, 1, 3, 4, 5, 7, 9, 11}]; // Vincenzo Librandi, Feb 22 2014
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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