A179592 - OEIS

A179592

Decimal expansion of the circumradius of pentagonal cupola with edge length 1.

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

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OFFSET

1,1

COMMENTS

Pentagonal cupola: 15 vertices, 25 edges, and 12 faces.

LINKS

Table of n, a(n) for n=1..105.

Wolfram Alpha, Johnson solid 5

FORMULA

Digits of sqrt(11+4*sqrt(5))/2.

EXAMPLE

2.232950509415690049500415383249682772934080730579181647457441260...