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A130282 Numbers n such that A130280(n^2-1) < n-1, i.e. there is a k, 1 < k < n-1, such that (n^2-1)(k^2-1)+1 is a perfect square. +0
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11, 23, 39, 41, 59, 64, 83, 111, 134, 143, 153, 179, 181, 219, 263, 307, 311, 363, 373, 386, 419, 479, 543, 571, 584, 611, 683, 703, 759, 781, 839, 900, 923, 989, 1011, 1103, 1156, 1199, 1299, 1403, 1405, 1425, 1511, 1546, 1623, 1739, 1769, 1859, 1983, 2111 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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