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Search: id:A112406
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| A112406 |
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(n+1)^((n+1)^n) - n^(n^(n-1)). |
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+0
1
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OFFSET
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1,2
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COMMENT
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First differences of A053015. Since a(2) = 3 is prime, a(3) = 19679 is semiprime, and a(4) has 6 prime factors. - Jonathan Vos Post (jvospost2(AT)yahoo.com), Dec 11 2005
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FORMULA
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Equally, 1-0, (2^2)-1, (3^3)^3 - 2^2, ((4^4)^4)^4 - (3^3)^3, ...
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CROSSREFS
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Cf. A053015.
Adjacent sequences: A112403 A112404 A112405 this_sequence A112407 A112408 A112409
Sequence in context: A124393 A116182 A128121 this_sequence A115475 A007350 A003839
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KEYWORD
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nonn
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AUTHOR
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Daniel Kiteck (dkiteck(AT)ms.uky.edu), Dec 07 2005
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