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A027747
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a(n) = n^n^n^..^n (6-n terms, n<=5).
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5
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OFFSET
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1,2
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COMMENTS
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The creator of the test asked me to remove this sequence. But one of the reasons for creating this database was to help people do these tests. This was stated already in the 1973 Handbook of Integer Sequences. Many sequences in the database have appeared on IQ tests.
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LINKS
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EXAMPLE
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a(1) = 1^(1^(1^(1^1))) = 1.
a(2) = 2^(2^(2^2)) = 2^16.
a(3) = 3^(3^3) = 3^27.
a(4) = 4^4.
a(5) = 5.
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MAPLE
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b:= (n, i)-> `if`(i=0, 1, n^b(n, i-1)):
a:= n-> b(n, 6-n):
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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Sent in by an anonymous correspondent.
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EXTENSIONS
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STATUS
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approved
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