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A102366 Number of subsets of {1,2,...,n} in which exactly half of the elements are less than or equal to sqrt(n). +0
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1, 1, 2, 3, 6, 10, 15, 21, 28, 84, 120, 165, 220, 286, 364, 455, 1820, 2380, 3060, 3876, 4845, 5985, 7315, 8855, 10626, 53130, 65780, 80730, 98280, 118755, 142506, 169911, 201376, 237336, 278256, 324632, 1947792, 2324784, 2760681, 3262623, 3838380 (list; graph; listen)
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.


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