Template:Sequence of the Day for March 4

Intended for: March 4, 2013

Timetable

• First draft entered by Alonso del Arte on April 6, 2012 ✓
• Draft reviewed by Daniel Forgues on March 3, 2016 ✓
• Draft to be approved by February 4, 2013

Yesterday's SOTD * Tomorrow's SOTD

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A179591: Decimal expansion of the surface area of a pentagonal cupola with edge length 1.

16.579749752988...

The pentagonal cupola is the fifth of the Johnson solids. It has 15 vertices, 25 edges and 12 faces (5 triangles, 5 squares, 1 pentagon, 1 decagon). The formula for its surface area is rather involved compared to the formulas for its volume and circumradius.