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Search: id:A071413
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A071413 a(n) = if n=0 then 0 else a(floor(n/2))+n*(-1)^(n mod 2). +0
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0, -1, 1, -4, 5, -4, 2, -11, 13, -4, 6, -15, 14, -11, 3, -26, 29, -4, 14, -23, 26, -15, 7, -38, 38, -11, 15, -38, 31, -26, 4, -57, 61, -4, 30, -39, 50, -23, 15, -62, 66, -15, 27, -58, 51, -38, 8, -85, 86, -11, 39, -62, 67, -38, 16, -93, 87, -26, 32, -85, 64, -57, 5 (list; graph; listen)
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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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