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A179641 Decimal expansion of the volume of pentagonal dipyramid with edge length 1. 0
6, 0, 3, 0, 0, 5, 6, 6, 4, 7, 9, 1, 6, 4, 9, 1, 4, 1, 3, 6, 7, 4, 3, 1, 1, 3, 9, 0, 6, 0, 9, 3, 9, 6, 8, 6, 2, 8, 6, 7, 1, 8, 1, 9, 6, 6, 3, 4, 2, 9, 3, 8, 1, 0, 3, 5, 5, 9, 0, 8, 1, 0, 3, 7, 8, 4, 2, 1, 0, 0, 7, 7, 1, 3, 6, 4, 8, 3, 7, 4, 1, 6, 1, 7, 8, 6, 7, 8, 6, 7, 3, 6, 4, 8, 9, 8, 5, 2, 2, 9, 1, 4, 1, 2, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Pentagonal dipyramid: 7 vertices, 15 edges, and 10 faces.

LINKS

Table of n, a(n) for n=0..104.

Wolfram Alpha, Johnson solid 13

FORMULA

Digits of (5+sqrt(5))/12.

EXAMPLE

0.60300566479164914136743113906093968628671819663429381035590810378421...

MATHEMATICA

RealDigits[N[(5+Sqrt[5])/12, 200]]

PROG

(PARI) (sqrt(5)+5)/12 \\ Charles R Greathouse IV, Apr 25 2016

CROSSREFS

Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449-A179452, A179552-A179554, A179587-A179593, A179637-A179640.

Sequence in context: A075092 A152244 A283634 * A110993 A262697 A237421

Adjacent sequences:  A179638 A179639 A179640 * A179642 A179643 A179644

KEYWORD

cons,nonn,easy

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jul 21 2010

EXTENSIONS

Offset corrected by R. J. Mathar, Aug 15 2010

STATUS

approved

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Last modified August 10 22:22 EDT 2020. Contains 336403 sequences. (Running on oeis4.)