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 A175986 a(1) = 1, for n >= 2: a(n) = (a(n-1)-1)^(n-1) - 1. 0

%I

%S 1,-1,3,7,1295,3628034278016223

%N a(1) = 1, for n >= 2: a(n) = (a(n-1)-1)^(n-1) - 1.

%C a(7) has 94 digits.

%e For n = 5: a(5) = (7-1)^4 - 1 = 1295.

%K sign

%O 1,3

%A _Jaroslav Krizek_, Nov 03 2010

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Last modified November 28 00:05 EST 2022. Contains 358406 sequences. (Running on oeis4.)