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%I #8 Aug 26 2019 11:23:16
%S 1,6,3,4,2,3,5,3,2,0,1,4,1,1,0,5,3,2,3,4,0,0,5,6,1,1,1,0,6,1,2,2,2,5,
%T 2,4,2,4,3,1,6,2,0,6,6,4,2,2,5,3,2,5,0,3,0,6,1,1,2,2,1,1,0,1,3,4,2,6,
%U 4,3,1,4,1,4,3,1,2,6,0,4,3,5,4,4,1,4,2,1
%N Digits of the 7-adic integer exp(-7).
%C Digits of the multiplicative inverse of A309987.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/P-adic_number">p-adic number</a>
%o (PARI) a(n) = lift(exp(-7+O(7^(n+1))))\7^n
%Y Cf. A309905.
%Y Digits of exp(-p) in p-adic field: A309866 (p=3), A309975 (p=5), this sequence (p=7).
%K nonn,base
%O 0,2
%A _Jianing Song_, Aug 26 2019
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