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 A179451 Decimal expansion of the surface area of an icosidodecahedron with side length 1. 17
 2, 9, 3, 0, 5, 9, 8, 2, 8, 4, 4, 9, 1, 1, 9, 8, 9, 5, 4, 0, 7, 4, 5, 3, 7, 5, 4, 3, 6, 1, 9, 2, 6, 7, 7, 0, 2, 7, 6, 0, 2, 5, 1, 6, 3, 0, 9, 1, 7, 4, 2, 8, 3, 0, 9, 0, 7, 6, 4, 1, 7, 1, 3, 8, 1, 5, 4, 6, 0, 9, 2, 9, 9, 1, 0, 5, 1, 5, 9, 4, 9, 6, 1, 3, 9, 5, 0, 2, 5, 8, 3, 0, 4, 3, 7, 2, 9, 5, 7, 6, 4, 3, 0, 4, 6 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS Icosidodecahedron: 32 faces, 30 vertices, and 60 edges. LINKS Table of n, a(n) for n=2..106. Index entries for algebraic numbers, degree 8 FORMULA Sqrt(30*(10+3*sqrt(5)+sqrt(75+30*sqrt(5)))) EXAMPLE 29.3059828449119895407453754361926770276025163091742830907641713815460... MATHEMATICA RealDigits[N[Sqrt[30*(10+3*Sqrt[5]+Sqrt[75+30*Sqrt[5]])], 200]] PROG (PARI) polrootsreal(x^8 - 1200*x^6 + 324000*x^4 - 27000000*x^2 + 324000000)[8] \\ Charles R Greathouse IV, Oct 30 2023 CROSSREFS Cf. A010527, A102208, A179290, A179292, A179294, A179449, A179450. Sequence in context: A345299 A276048 A339203 * A124918 A348763 A011240 Adjacent sequences: A179448 A179449 A179450 * A179452 A179453 A179454 KEYWORD nonn,cons,easy AUTHOR Vladimir Joseph Stephan Orlovsky, Jul 14 2010 EXTENSIONS Partially rewritten by Charles R Greathouse IV, Feb 03 2011 STATUS approved

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Last modified August 15 01:27 EDT 2024. Contains 375171 sequences. (Running on oeis4.)