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Search: id:A080584
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| A080584 |
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A run of 3*2^n 0's followed by a run of 3*2^n 1's, for n=0, 1, 2, ... |
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+0
6
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| 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
(list; graph; listen)
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OFFSET
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0,1
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FORMULA
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a(n) = (1 - (-1)^A079944(A002264(n)) )/2, A079944(A002264(n))=floor(log[2](4*(floor((n+6)/3))/3)) - floor(log[2](floor((n+6)/3))) - Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Feb 24 2003
Also a(n) = A079944(A002264(n)) = floor(log[2](4*(floor((n+6)/3))/3)) - floor(log[2](floor((n+6)/3))) - Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Feb 24 2003
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MAPLE
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f := (c, n)->seq(c, i = 1..3*2^n); [f(0, 0), f(1, 0), f(0, 1), f(1, 1), f(0, 2), f(1, 2), f(0, 3), f(1, 3)]; f;
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CROSSREFS
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Equals A080586 - 1.
Adjacent sequences: A080581 A080582 A080583 this_sequence A080585 A080586 A080587
Sequence in context: A135461 A093383 A093384 this_sequence A118953 A023970 A072626
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KEYWORD
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nonn
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AUTHOR
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njas, Feb 23 2003
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