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A007755 Smallest number m such that the trajectory of m under iteration of Euler's totient function phi(n) [A000010] contains exactly n distinct numbers (including m and the fixed point). +0
12
1, 2, 3, 5, 11, 17, 41, 83, 137, 257, 641, 1097, 2329, 4369, 10537, 17477, 35209, 65537, 140417, 281929, 557057, 1114129, 2384897, 4227137, 8978569, 16843009, 35946497, 71304257, 143163649, 286331153, 541073537, 1086374209, 2281701377, 4295098369 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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