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A179451 Decimal expansion of the surface area of an icosidodecahedron with side length 1. 15
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.

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]]

CROSSREFS

Cf. A010527, A102208, A179290, A179292, A179294, A179449, A179450.

Sequence in context: A091943 A318511 A276048 * A124918 A011240 A021345

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 November 20 17:09 EST 2019. Contains 329337 sequences. (Running on oeis4.)