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 A112406 a(n) = (n+1)^((n+1)^n) - n^(n^(n-1)). 0
 1, 3, 19679, 340282366920938463463374607431768191773 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 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, Dec 11 2005 LINKS Table of n, a(n) for n=1..4. FORMULA Equally, 1-0, (2^2)-1, (3^3)^3 - 2^2, ((4^4)^4)^4 - (3^3)^3, ... CROSSREFS Cf. A053015. Sequence in context: A182914 A203182 A128121 * A344681 A171364 A307670 Adjacent sequences: A112403 A112404 A112405 * A112407 A112408 A112409 KEYWORD nonn AUTHOR Daniel Kiteck, Dec 07 2005 STATUS approved

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Last modified May 30 06:39 EDT 2023. Contains 363045 sequences. (Running on oeis4.)