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A307418 Expansion of 1/(1 - x - 2*x/(1 - 3*x - 4*x/(1 - 5*x - 6*x/(1 - 7*x - 8*x/(1 - ...))))), a continued fraction. 0

%I #23 Mar 18 2024 06:41:58

%S 1,3,23,297,5377,125211,3564311,119923089,4655903809,204870639987,

%T 10075617486167,547693463064633,32607543239954113,2110160087505699339,

%U 147482363058886213079,11071382656533287144481,888443133459417946162561,75894715974405095400952803

%N Expansion of 1/(1 - x - 2*x/(1 - 3*x - 4*x/(1 - 5*x - 6*x/(1 - 7*x - 8*x/(1 - ...))))), a continued fraction.

%F a(n) ~ c * d^n * n^n, where d = 2 / (exp(1) * (2*log(2) - 1)) = 1.9046586137314438905888971496696905186344... and c = 1/sqrt(2*log(2) - 1) = 1.608943581845581629220091... - _Vaclav Kotesovec_, Jul 01 2019, updated Mar 18 2024

%t nmax = 17; CoefficientList[Series[1/(1 - x + ContinuedFractionK[-2 k x, 1 - (2 k + 1) x, {k, 1, nmax}]), {x, 0, nmax}], x]

%Y Cf. A001147, A001813, A292855.

%K nonn

%O 0,2

%A _Ilya Gutkovskiy_, Jun 25 2019

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Last modified August 25 08:31 EDT 2024. Contains 375422 sequences. (Running on oeis4.)