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A248247 Egyptian fraction representation of sqrt(19) (A010475) using a greedy function. 0

%I #6 Oct 20 2019 12:35:11

%S 4,3,40,1769,3133987,24555734311137,5553769558933640154963528048,

%T 58425567381851662534231519139184106852906758833242204348,

%U 8289351943967938706857419188398816898988729770105649746642711092034483624446711151502281270880844114102012375418

%N Egyptian fraction representation of sqrt(19) (A010475) using a greedy function.

%t Egyptian[nbr_] := Block[{lst = {IntegerPart[nbr]}, cons = N[ FractionalPart[ nbr], 2^20], denom, iter = 8}, While[ iter > 0, denom = Ceiling[ 1/cons]; AppendTo[ lst, denom]; cons -= 1/denom; iter--]; lst]; Egyptian[ Sqrt[ 19]]

%Y Egyptian fraction representations of the square roots: A006487, A224231, A248235-A248322.

%Y Egyptian fraction representations of the cube roots: A129702, A132480-A132574.

%K nonn

%O 0,1

%A _Robert G. Wilson v_, Oct 04 2014

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Last modified September 6 15:58 EDT 2024. Contains 375715 sequences. (Running on oeis4.)