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Main diagonal of A291678.
1

%I #6 Aug 30 2017 09:36:38

%S 1,1,1,-2,-11,-24,-8,141,573,1087,-174,-8700,-31328,-52740,36387,

%T 534198,1742445,2540583,-3626189,-33115232,-97968686,-118497822,

%U 301668764,2060526393,5526622320,5165256226,-23033840842,-127995025736,-310560935969,-193716799472

%N Main diagonal of A291678.

%F a(n) = [x^n] (1 + x/(1 + x^2/(1 + x^3/(1 + x^4/(1 + x^5/(1 + ...))))))^n, a continued fraction.

%Y Cf. A291651, A291678.

%K sign

%O 0,4

%A _Seiichi Manyama_, Aug 29 2017