%I #11 May 22 2024 04:05:58
%S 2,5,4,9,5,0,9,7,5,6,7,9,6,3,9,2,4,1,5,0,1,4,1,1,2,0,5,4,5,1,1,3,9,0,
%T 9,9,4,7,8,1,8,8,5,4,7,3,0,4,9,7,9,8,2,0,3,7,9,2,4,8,5,4,0,2,2,1,2,9,
%U 6,6,8,1,6,0,3,1,1,1,2,0,9,7,7,9,4,1,7
%N Decimal expansion of sqrt(26)/2.
%C sqrt(26)/2 is the area of a triangle of sides sqrt(5), sqrt(6) and sqrt(7), which is the smallest triangle whose sides are of the form sqrt(k), sqrt(k + 1) and sqrt(k + 2) and are all irrational numbers, where k is a positive integer.
%F Equals sqrt(13/2).
%e 2.54950975679639241501411...
%t RealDigits[Sqrt[26]/2, 10, 200][[1]]
%Y Cf. A010481.
%K nonn,cons,easy
%O 1,1
%A _Gonzalo MartÃnez_, May 20 2024