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Search: id:A133613
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| A133613 |
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10-adic expansion of the iterated exponential 3^^n for sufficiently large n (where c^^n denotes a tower of c's of height n). |
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1
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OFFSET
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0,1
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EXAMPLE
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Consider the sequence 3^^n: 1, 3, 27, 7625597484987, ... From 3^^3 = 7625597484987 onwards, all terms end with the digits 87. This follows from Euler's generalization of Fermat's little theorem.
For n>9, 3^^n == 4195387 (mod 10^7)
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CROSSREFS
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Sequence in context: A064207 A020843 A083648 this_sequence A079082 A091683 A092157
Adjacent sequences: A133610 A133611 A133612 this_sequence A133614 A133615 A133616
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KEYWORD
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nonn,base,more
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AUTHOR
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Daniel Geisler (daniel(AT)danielgeisler.com), Dec 18 2007
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EXTENSIONS
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Edited by njas, Dec 22 2007
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