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A015812 Composite numbers n such that phi(n) + 2 | sigma(n). +0
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6, 10, 14, 22, 24, 26, 27, 28, 34, 38, 40, 45, 46, 54, 58, 62, 74, 82, 86, 90, 94, 106, 118, 122, 132, 134, 142, 146, 158, 166, 178, 184, 194, 202, 206, 214, 218, 226, 254, 260, 262, 274, 278, 298, 302, 314, 326, 334, 346, 358, 362, 374, 382, 386 (list; graph; listen)
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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.


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