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%I #7 Aug 26 2019 03:17:35
%S 2,6,20,66,210,666,2108,6666,21080,66666,210818,666666,2108184,
%T 6666666,21081850,66666666,210818510,666666666,2108185106,6666666666,
%U 21081851066,66666666666,210818510676,666666666666,2108185106778
%N Largest term in periodic part of continued fraction expansion of square root of n-th repunit.
%F a(n) = 2*A096483(n).
%t Do[Print[Max[ContinuedFraction[((-1+10^n)/9)^(1/2)]]], {n, 2, 18}]
%Y Cf. A096483.
%K nonn
%O 2,1
%A _Labos Elemer_, Jun 25 2004
%E More terms from _Michel Marcus_, Aug 26 2019