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A175427
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Starting values which reach a single-digit number after a finite number of iterations of the map x->A175429(x).
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8
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50
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OFFSET
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1,3
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COMMENTS
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Arguments m such that A175424(m) >= 0. Also arguments m such that A175419(m) >= 0.
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LINKS
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EXAMPLE
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27 is in the sequence because a single-digit number is reached in 3 iterations: 7^2 = 49, 9^4 = 6561, ((1^6)^5)^6 = 1, so A175424(27) = 3.
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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STATUS
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approved
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