A377345 Decimal expansion of the circumradius of a truncated cuboctahedron (great rhombicuboctahedron) with unit edge length.

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

Offset

1,1

Links

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

Eric Weisstein's World of Mathematics, Great Rhombicuboctahedron.

Wikipedia, Truncated cuboctahedron.

Formula

Equals sqrt(13 + 6*sqrt(2))/2 = sqrt(13 + A010524)/2.

Example

2.3176109128927665137791474633402948053450518945...

Mathematica

First[RealDigits[Sqrt[13 + 6*Sqrt[2]]/2, 10, 100]] (* or *)
First[RealDigits[PolyhedronData["TruncatedCuboctahedron", "Circumradius"], 10, 100]]

Crossrefs

Cf. A377343 (surface area), A377344 (volume), A377346 (midradius).

Cf. A010524.

Sequence in context: A114581 A328398 A085588 * A118008 A256045 A173459

Adjacent sequences: A377342 A377343 A377344 * A377346 A377347 A377348

Keyword

nonn,cons,easy

Author

Paolo Xausa, Oct 26 2024

Status

approved