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#76 by Joerg Arndt at Mon Aug 20 12:11:36 EDT 2018
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#75 by Altug Alkan at Mon Aug 20 11:38:46 EDT 2018
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#74 by Altug Alkan at Mon Aug 20 11:38:10 EDT 2018
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| LINKS
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Altug Alkan, <a href="/A303404/b303404.txt">Table of n, a(n) for n = 0..10240</a>
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| STATUS
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approved
editing
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#73 by Bruno Berselli at Mon Aug 20 11:28:18 EDT 2018
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#72 by Robert Israel at Mon Aug 20 00:29:25 EDT 2018
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#71 by Robert Israel at Mon Aug 20 00:28:59 EDT 2018
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| KEYWORD
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sign,changed,look
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#70 by Robert Israel at Mon Aug 20 00:27:46 EDT 2018
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| FORMULA
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G.f. g(x) satisfies g(x) + 2*g(x^2)*(1+x+x^2) = x + x^2 + x^3 + x^4 + 2*x^5. - Robert Israel, Aug 20 2018
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| MAPLE
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A[0]:= 0: A[1]:= 1:
for n from 1 to 50 do
A[2*n]:= A[2*n-1]-2*A[n];
A[2*n+1]:= n - 2*A[n]
od:
seq(A[i], i=0..101); # Robert Israel, Aug 20 2018
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| STATUS
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proposed
editing
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#69 by Altug Alkan at Sun Aug 19 09:07:55 EDT 2018
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#68 by Altug Alkan at Sun Aug 19 08:35:52 EDT 2018
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#67 by Altug Alkan at Sun Aug 19 08:25:51 EDT 2018
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| COMMENTS
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A020714 is generally determinative for block structures of this sequence.
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