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A005278 Noncototients: n such that x-phi(x)=n has no solution.
(Formerly M4688)
+0
20
10, 26, 34, 50, 52, 58, 86, 100, 116, 122, 130, 134, 146, 154, 170, 172, 186, 202, 206, 218, 222, 232, 244, 260, 266, 268, 274, 290, 292, 298, 310, 326, 340, 344, 346, 362, 366, 372, 386, 394, 404, 412, 436, 466, 470, 474, 482, 490, 518, 520 (list; graph; listen)
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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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