A179453 Decimal expansion of the inradius of an icosidodecahedron with edge length 1.

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

Offset

1,2

Comments

Icosidodecahedron: 32 faces, 30 vertices, and 60 edges.

Links

Table of n, a(n) for n=1..105.

Icosidodecahedron

Formula

Digits of (5+3*sqrt(5))/8.

Example

1.46352549156242113615344012577422858829023188485432214660158646702894...

Mathematica

RealDigits[N[(5+3*Sqrt[5])/8, 200]]

Prog

(PARI) (sqrt(45)+5)/8 \\ Charles R Greathouse IV, Apr 25 2016

Crossrefs

Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449, A179450, A179451, A179452.

Sequence in context: A179374 A081709 A200640 * A273819 A276761 A073000

Adjacent sequences: A179450 A179451 A179452 * A179454 A179455 A179456

Keyword

nonn,cons,easy

Author

Vladimir Joseph Stephan Orlovsky, Jul 14 2010

Status

approved