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A112406
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(n+1)^((n+1)^n) - n^(n^(n-1)).
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0
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OFFSET
| 1,2
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COMMENTS
| 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 (jvospost3(AT)gmail.com), Dec 11 2005
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FORMULA
| Equally, 1-0, (2^2)-1, (3^3)^3 - 2^2, ((4^4)^4)^4 - (3^3)^3, ...
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CROSSREFS
| Cf. A053015.
Sequence in context: A182914 A203182 A128121 * A171364 A115475 A007350
Adjacent sequences: A112403 A112404 A112405 * A112407 A112408 A112409
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KEYWORD
| nonn
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AUTHOR
| Daniel Kiteck (dkiteck(AT)ms.uky.edu), Dec 07 2005
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