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A107848
Number of subsets of the n-th roots of unity summing to a real number.
+0
2
2, 4, 4, 8, 8, 24, 16, 48, 40, 144, 64, 336, 128, 864, 416, 1728, 512, 8304, 1024, 10656, 4032, 31104, 4096, 116256, 9248, 186624, 40000, 374976, 32768, 3537024, 65536, 2239488
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.
AT&T Labs Research
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