A377604 Decimal expansion of the circumradius of a snub cube (snub cuboctahedron) with unit edge length.

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

Offset

1,2

Links

Table of n, a(n) for n=1..90.

Eric Weisstein's World of Mathematics, Snub Cube.

Wikipedia, Snub cube.

Formula

Equals sqrt((3 - A058265)/(4*(2 - A058265))).

Example

1.343713373744601701271528753975058247637602609...

Mathematica

First[RealDigits[Sqrt[(3 - #)/(8 - 4*#)], 10, 100]] & [Root[#^3 - #^2 - # - 1 &, 1]] (* or *)
First[RealDigits[PolyhedronData["SnubCube", "Circumradius"], 10, 100]]

Crossrefs

Cf. A377602 (surface area), A377603 (volume), A377605 (midradius).

Cf. A058265.

Sequence in context: A366764 A365337 A349337 * A358045 A371858 A111970

Adjacent sequences: A377601 A377602 A377603 * A377605 A377606 A377607

Keyword

nonn,cons,easy

Author

Paolo Xausa, Nov 03 2024

Status

approved