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A104112
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Decimal expansion of 42^42.
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0
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1, 5, 0, 1, 3, 0, 9, 3, 7, 5, 4, 5, 2, 9, 6, 5, 7, 2, 3, 5, 6, 7, 7, 1, 9, 7, 2, 1, 6, 4, 2, 5, 4, 4, 5, 7, 8, 1, 4, 0, 4, 7, 9, 7, 0, 5, 6, 8, 7, 3, 8, 7, 7, 7, 2, 3, 5, 8, 9, 3, 5, 3, 3, 0, 1, 6, 0, 6, 4
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OFFSET
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69,2
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COMMENTS
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Let phi_n denote Euler's totient function iterated n times, then phi_n(42^42) = 2^(42+n) * 3^42 * 7^(42-n) for n = 1 to 42. The phi iteration can be repeated 3*42 times. 42^42/sum(all resulting phi values) = 2.49999999999999999999999118906...
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LINKS
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EXAMPLE
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150130937545296572356771972164254457814047970568738777235893533016064.
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MATHEMATICA
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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