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

*2, 6, 8, 14, 26, 62, 134, 393, 1257, 4659, 9314, 27933, 167073, 334142, 4677862*

*3 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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