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A053577 Cototient function ( n-EulerPhi[n] ) is a power of 2. +0
5
2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 16, 17, 19, 23, 24, 28, 29, 31, 32, 37, 41, 43, 47, 48, 53, 56, 59, 61, 62, 64, 67, 71, 73, 79, 83, 89, 96, 97, 101, 103, 107, 109, 112, 113, 124, 127, 128, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 192, 193, 197 (list; graph; listen)
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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