

A048133


Least number which becomes prime or 4 after exactly n iterations of f(x) = sum of prime factors of x.


2



2, 6, 8, 14, 26, 62, 134, 393, 1257, 4659, 9314, 27933, 167073, 334142, 4677862, 14033577, 56134292, 2133102298, 11788191218, 52541651594
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