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A007178 Number of ways to write 1 as ordered sum of n powers of 1/2, allowing repeats.
(Formerly M2951)
+0
9
1, 1, 3, 13, 75, 525, 4347, 41245, 441675, 5259885, 68958747, 986533053, 15292855019, 255321427725, 4567457001915, 87156877087069, 1767115200924299, 37936303950503853, 859663073472084315, 20505904049009202685, 513593410566661282347 (list; graph; listen)
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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