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A079446
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phi(n)*[n-phi(n)]+1 is prime.
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2
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2, 3, 4, 5, 7, 8, 9, 11, 13, 17, 18, 19, 20, 21, 23, 25, 27, 28, 29, 31, 32, 37, 41, 43, 47, 50, 52, 53, 55, 56, 57, 59, 61, 67, 68, 71, 72, 73, 77, 78, 79, 81, 83, 89, 92, 95, 97, 99
(list; graph; refs; listen; history; internal format)
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