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A236558 Vertex solid angle (steradians) in a regular dodecahedron. 4
2, 9, 6, 1, 7, 3, 9, 1, 5, 3, 7, 9, 7, 3, 1, 4, 9, 6, 7, 8, 7, 4, 0, 9, 0, 3, 8, 6, 0, 2, 3, 3, 9, 4, 6, 4, 8, 1, 8, 4, 1, 9, 5, 8, 6, 2, 5, 4, 5, 9, 1, 3, 7, 0, 1, 9, 2, 0, 2, 7, 1, 5, 6, 2, 3, 1, 4, 5, 0, 1, 7, 9, 5, 6, 4, 0, 3, 2, 9, 6, 1, 5, 2, 1, 5, 8, 1, 8, 2, 6, 4, 6, 2, 5, 7, 2, 2, 2, 1, 1, 6, 6, 0, 6, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Stanislav Sykora, Table of n, a(n) for n = 1..2000

Wikipedia, Platonic solid

FORMULA

Pi - arctan(2/11).

EXAMPLE

2.9617391537973149678740903860233946481841958625459137019202715623145...

PROG

(PARI) Pi-atan(2/11)

CROSSREFS

Cf. Analogs: A236555 (tetrahedron), A236556 (octahedron), A019669 (cube), A236557 (icosahedron).

Sequence in context: A193088 A162916 A057273 * A108986 A011069 A010598

Adjacent sequences:  A236555 A236556 A236557 * A236559 A236560 A236561

KEYWORD

nonn,cons,easy

AUTHOR

Stanislav Sykora, Jan 28 2014

STATUS

approved

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Last modified August 17 23:58 EDT 2017. Contains 290682 sequences.