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A222609 Decimal expansion of the dimensionless coefficient of Stefan-Boltzmann constant. 1
4, 0, 8, 0, 2, 6, 2, 4, 6, 3, 8, 0, 3, 7, 5, 2, 7, 1, 0, 1, 6, 9, 8, 8, 4, 1, 3, 3, 9, 1, 2, 4, 7, 4, 7, 5, 3, 0, 7, 0, 6, 7, 6, 0, 8, 8, 3, 7, 4, 3, 3, 3, 2, 0, 7, 3, 7, 9, 8, 9, 9, 2, 4, 9, 1, 4, 9, 7, 9, 9, 8, 9, 5, 1, 1, 4, 8, 5, 3, 6, 5, 9, 8, 1, 0, 4, 4, 6, 6, 7, 2, 9, 8, 0, 0, 6, 8, 2, 5, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

Equals integral_{0..infinity} 2*Pi*x^3/(e^x-1) dx.

LINKS

Table of n, a(n) for n=2..101.

David Broadhurst, Feynman’s sunshine numbers, arXiv:1004.4238 [physics.pop-ph] p. 6.

Wikipedia, Stefan-Boltzmann constant

EXAMPLE

40.802624638...

MATHEMATICA

RealDigits[2*Pi^5/15, 10, 100] // First

CROSSREFS

Sequence in context: A103554 A261278 A340424 * A247848 A076261 A070802

Adjacent sequences:  A222606 A222607 A222608 * A222610 A222611 A222612

KEYWORD

nonn,cons

AUTHOR

Jean-François Alcover, Feb 26 2013

STATUS

approved

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Last modified October 16 20:36 EDT 2021. Contains 348047 sequences. (Running on oeis4.)