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A007910 G.f.: 1/((1-2*x)*(1+x^2)). +0
10
1, 2, 3, 6, 13, 26, 51, 102, 205, 410, 819, 1638, 3277, 6554, 13107, 26214, 52429, 104858, 209715, 419430, 838861, 1677722, 3355443, 6710886, 13421773, 26843546, 53687091, 107374182, 214748365, 429496730, 858993459, 1717986918, 3435973837, 6871947674 (list; graph; listen)
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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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