A200728 - OEIS

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A200728

Decimal expansion of the circumradius of cyclic quadrilateral with sides 1, 2, 3, 4.

2, 0, 0, 2, 6, 0, 2, 4, 7, 3, 4, 4, 9, 6, 5, 2, 6, 2, 9, 9, 5, 1, 7, 0, 5, 6, 4, 2, 1, 4, 2, 2, 3, 3, 8, 7, 1, 2, 7, 3, 6, 9, 8, 7, 9, 4, 9, 0, 7, 8, 5, 3, 0, 0, 3, 4, 6, 7, 2, 9, 8, 3, 8, 0, 3, 8, 4, 8, 3, 2, 5, 5, 5, 7, 9, 9, 0, 7, 7, 6, 4, 1, 3, 2, 4, 0

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Area is K = sqrt(24) = 4.89897948556635619639... (decimal expansion in A010480).

LINKS

Table of n, a(n) for n=1..86.

Zak Seidov, Figure showing polygon.

FORMULA

R = (385/96)^(1/2).

EXAMPLE

2.0026024734496526299517...