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A175981 a(1) = 1, for n >= 2: a(n) = a(n-1)^(n-1) - 1. 0
1, 0, -1, -2, 15, 759374, 191749544167774320464809980317709375 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
a(8) has 247 digits.
a(9) has 1976 digits. - Harvey P. Dale, Feb 11 2024
LINKS
EXAMPLE
For n = 5: a(5) = (-2)^(5-1) - 1 = 15.
MATHEMATICA
nxt[{n_, a_}]:={n+1, a^n-1}; NestList[nxt, {1, 1}, 7][[;; , 2]] (* Harvey P. Dale, Feb 11 2024 *)
CROSSREFS
Sequence in context: A135085 A290042 A080911 * A056072 A294195 A175982
KEYWORD
sign
AUTHOR
Jaroslav Krizek, Nov 03 2010
STATUS
approved

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)