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 A200728 Decimal expansion of the circumradius of cyclic quadrilateral with sides 1, 2, 3, 4. 1
 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... MATHEMATICA RealDigits[Sqrt[385/96], 10, 120][[1]] (* Amiram Eldar, Jun 27 2023 *) PROG (PARI) sqrt(385/96) \\ Charles R Greathouse IV, Dec 28 2011 CROSSREFS Cf. A090654, A010480, A200113, A200257. Sequence in context: A244522 A292945 A024690 * A066209 A284455 A333250 Adjacent sequences: A200725 A200726 A200727 * A200729 A200730 A200731 KEYWORD nonn,easy,cons AUTHOR Zak Seidov, Nov 21 2011 STATUS approved

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Last modified December 3 14:53 EST 2023. Contains 367540 sequences. (Running on oeis4.)