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editing
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editing
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nonn,easy,changed
Empirical gG.f.: x*(x^7+x^6-x^5+x^4+x^3+x^2+x+1) / ((x-1)^2*(x+1)^2*(x^2+1)). - Colin Barker, Jun 20 2013
approved
editing
editing
approved
A240828 is an essentially identical sequence. - Bruno Berselli, Apr 18 2014
approved
editing
editing
approved
Bruno Berselli, <a href="/A185048/b185048.txt">Table of n, a(n) for n = 1..20000</a>
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proposed
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editing
proposed
Empirical g.f.: x*(x^7+x^6-x^5+x^4+x^3+x^2+x+1) / ((x-1)^2*(x+1)^2*(x^2+1)). - Colin Barker, Jun 20 2013
approved
editing