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A020781 Decimal expansion of 1/sqrt(24). 5
2, 0, 4, 1, 2, 4, 1, 4, 5, 2, 3, 1, 9, 3, 1, 5, 0, 8, 1, 8, 3, 1, 0, 7, 0, 0, 6, 2, 2, 5, 4, 9, 0, 9, 4, 9, 3, 3, 0, 4, 9, 5, 6, 2, 3, 3, 8, 8, 0, 5, 5, 8, 4, 4, 0, 3, 6, 0, 5, 7, 7, 1, 3, 9, 3, 7, 5, 8, 0, 0, 3, 1, 4, 5, 4, 7, 7, 6, 2, 5, 2, 2, 1, 1, 6, 5, 4, 9, 5, 2, 7, 5, 8, 7, 2, 0, 0, 1, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Radius of the inscribed sphere (tangent to the faces) for a regular tetrahedron with unit edges. - Stanislav Sykora, Nov 20 2013

LINKS

Ivan Panchenko, Table of n, a(n) for n = 0..1000

Wikipedia, Tetrahedron

EXAMPLE

1/Sqrt(24)=0.20412414523193150818310700622549094933... [Vladimir Joseph Stephan Orlovsky, May 30 2010]

MATHEMATICA

RealDigits[N[1/Sqrt[24], 200]] (* Vladimir Joseph Stephan Orlovsky, May 30 2010 *)

CROSSREFS

Cf. Platonic solids inradii: A020763 (octahedron), A179294 (icosahedron), A237603 (dodecahedron). - Stanislav Sykora, Feb 25 2014

Sequence in context: A090888 A154794 A177264 * A007432 A079124 A242071

Adjacent sequences:  A020778 A020779 A020780 * A020782 A020783 A020784

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 21 00:45 EDT 2017. Contains 290855 sequences.