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A002450 (4^n - 1)/3.
(Formerly M3914 N1608)
+0
106
0, 1, 5, 21, 85, 341, 1365, 5461, 21845, 87381, 349525, 1398101, 5592405, 22369621, 89478485, 357913941, 1431655765, 5726623061, 22906492245, 91625968981, 366503875925, 1466015503701, 5864062014805, 23456248059221, 93824992236885 (list; graph; listen)
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Last modified December 6 11:04 EST 2009. Contains 170427 sequences.


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