A377602 Decimal expansion of the surface area of a snub cube (snub cuboctahedron) with unit edge length.

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

Offset

2,2

Links

Table of n, a(n) for n=2..91.

Eric Weisstein's World of Mathematics, Snub Cube.

Wikipedia, Snub cube.

Index entries for algebraic numbers, degree 2.

Formula

Equals 6 + 8*sqrt(3) = 6 + 8*A002194 = 6 + A200243.

Example

19.856406460551018348219570732046978935542442030...

Mathematica

First[RealDigits[6 + Sqrt[192], 10, 100]] (* or *)
First[RealDigits[PolyhedronData["SnubCube", "SurfaceArea"], 10, 100]]

Crossrefs

Cf. A377603 (volume), A377604 (circumradius), A377605 (midradius).

Cf. A002194, A200243.

Sequence in context: A345737 A275703 A094141 * A200292 A155791 A327341

Adjacent sequences: A377599 A377600 A377601 * A377603 A377604 A377605

Keyword

nonn,cons,easy,changed

Author

Paolo Xausa, Nov 02 2024

Status

approved