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Search: id:A152067
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| A152067 |
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Coefficient expansion of the symmetric Salem polynomial p(x)=1 - x^5 - x^6 - x^7 + x^12; a(n)=coefficient_expansion(1/(x^12*p(1/x)). |
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1
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| 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 2, 2, 2, 1, 1, 3, 4, 5, 4, 4, 5, 7, 10, 11, 11, 12, 15, 19, 24, 27, 30, 34, 41, 51, 60, 70, 80, 93, 111, 133, 157, 183, 213, 250, 296, 350, 413, 483, 566, 666, 785
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OFFSET
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0,12
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FORMULA
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Polynomial:p(x)=1 - x^5 - x^6 - x^7 + x^12; a(n)=coefficient_expansion(1/(x^12*p(1/x)).
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MATHEMATICA
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f[x_] = 1 - x^5 - x^6 - x^7 + x^12; g[x] = ExpandAll[x^12*f[1/x]]; a = Table[SeriesCoefficient[ Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}]
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CROSSREFS
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Sequence in context: A159853 A087698 A101677 this_sequence A128084 A131823 A089722
Adjacent sequences: A152064 A152065 A152066 this_sequence A152068 A152069 A152070
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KEYWORD
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nonn
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Nov 23 2008
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