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A344076 Decimal expansion of sqrt(61/2 + 18*sqrt(3) + 30*sqrt(1+sqrt(3)))/3. 1
3, 5, 1, 6, 0, 5, 3, 0, 9, 0, 9, 3, 8, 3, 1, 4, 4, 6, 8, 8, 7, 9, 4, 8, 1, 0, 4, 7, 7, 8, 8, 0, 6, 7, 3, 4, 9, 8, 2, 8, 1, 7, 5, 8, 3, 6, 2, 1, 3, 2, 2, 8, 6, 1, 9, 8, 0, 5, 1, 4, 5, 2, 3, 7, 1, 1, 5, 3, 7, 7, 6, 4, 9, 1, 5, 1, 9, 7, 6, 1, 1, 5, 4, 7, 2, 2, 0, 8, 9, 6, 3, 3, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Decimal expansion of the volume of a gyroelongated triangular cupola with unit edge length whose faces are all regular.

LINKS

Table of n, a(n) for n=1..93.

Wikipedia, Gyroelongated triangular cupola

EXAMPLE

3.516053090938314468879...

MATHEMATICA

RealDigits[Sqrt[61/2 + 18 Sqrt[3] + 30 Sqrt[1 + Sqrt[3]]]/3, 10, 200][[1]]

CROSSREFS

Cf. A344077 (gyroelongated triangular cupola surface area).

Sequence in context: A076553 A199616 A173973 * A333336 A061649 A237603

Adjacent sequences:  A344073 A344074 A344075 * A344077 A344078 A344079

KEYWORD

cons,nonn

AUTHOR

Wesley Ivan Hurt, May 08 2021

STATUS

approved

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)