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A175982 a(1) = 1, for n >= 2: a(n) = n^(a(n-1)) - 1. 0
1, 1, 2, 15, 30517578124 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The next term is too large to include.

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

For n = 4: a(4) = 4^2 - 1 = 15.

CROSSREFS

Sequence in context: A175981 A056072 A294195 * A136666 A031361 A155955

Adjacent sequences:  A175979 A175980 A175981 * A175983 A175984 A175985

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Nov 03 2010

STATUS

approved

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Last modified September 26 15:51 EDT 2022. Contains 357000 sequences. (Running on oeis4.)