A380734 Decimal expansion of the medium/short edge length ratio of a disdyakis dodecahedron.

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

Offset: 1

Author

Paolo Xausa, Jan 31 2025

Keywords

• nonn
• cons
• easy

Examples

			1.33770871866841824565822846556337733622336049131...
		

Links

• Paolo Xausa, Table of n, a(n) for n = 1..10000
• Eric Weisstein's World of Mathematics, Disdyakis Dodecahedron.
• Wikipedia, Disdyakis dodecahedron.
• Index entries for algebraic numbers, degree 2.

Crossrefs

Cf. A380735 (long/short edge length ratio).

Cf. A010474, A378393, A378712, A378713, A378714, A378715, A380736, A380737, A380738.

Programs

Mathematica

First[RealDigits[3/14*(2 + 3*Sqrt[2]), 10, 100]]

PARI

(2 + 3*sqrt(2))*3/14 \\ Charles R Greathouse IV, Feb 05 2025

Formula

Equals (3/14)*(2 + 3*sqrt(2)) = (3/14)*(2 + A010474).