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A081767 Numbers n such that n^2-1 divides binomial(2n,n). +0
2
2, 16, 21, 29, 43, 46, 67, 78, 89, 92, 105, 111, 141, 154, 157, 171, 188, 191, 205, 210, 211, 221, 229, 232, 239, 241, 267, 277, 300, 309, 313, 316, 323, 326, 331, 346, 369, 379, 415, 421, 430, 436, 441, 443, 451, 460, 461, 465, 469, 477, 484, 494, 497, 528 (list; graph; listen)
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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