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A117616
a(0)=0, a(n)=4a(n-1)+2 for n odd, a(n)=4a(n-1) for n even.
+0
2
0, 2, 8, 34, 136, 546, 2184, 8738, 34952, 139810, 559240, 2236962, 8947848, 35791394, 143165576, 572662306, 2290649224, 9162596898, 36650387592, 146601550370, 586406201480, 2345624805922, 9382499223688, 37529996894754
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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