A179589 Decimal expansion of the circumradius of square cupola with edge length 1.

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

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Jul 19 2010

Keywords

• nonn
• cons
• easy

Comments

Square cupola: 12 vertices, 20 edges, and 10 faces.

Examples

			1.398966325965906702031540539431998764673522563866238879930...
		

Links

• Wolfram Alpha, Johnson solid 4
• Index entries for algebraic numbers, degree 4

Crossrefs

Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449, A179450, A179451, A179452, A179552, A179553, A019881, A179587, A179588.

Programs

Mathematica

RealDigits[N[Sqrt[5+2*Sqrt[2]]/2,200]]

Formula

Digits of sqrt(5+2*sqrt(2))/2.