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Revision History for A020837 (Underlined text is an addition; strikethrough text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A020837

Decimal expansion of 1/sqrt(80) = sqrt(5)/20.
(history; published version)

#46 by Charles R Greathouse IV at Mon Aug 21 11:29:18 EDT 2023

STATUS

editing

approved

#45 by Charles R Greathouse IV at Mon Aug 21 11:29:17 EDT 2023

LINKS

<a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>

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approved

editing

#44 by Sean A. Irvine at Sun Mar 12 18:57:51 EDT 2023

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editing

approved

#43 by Sean A. Irvine at Sun Mar 12 18:57:39 EDT 2023

COMMENTS

sqrt(5)/2 is the standard deviation of a roll ofrolling a 4-sided die. - Mohammed Yaseen, Feb 23 2023

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proposed

editing

#42 by Mohammed Yaseen at Thu Feb 23 11:56:56 EST 2023

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editing

proposed

#41 by Mohammed Yaseen at Thu Feb 23 11:55:32 EST 2023

COMMENTS

sqrt(5)/2 is the standard deviation of a roll of a 4-sided die roll. - Mohammed Yaseen, Feb 23 2023

#40 by Mohammed Yaseen at Thu Feb 23 08:45:39 EST 2023

COMMENTS

sqrt(5)/2 is the standard deviation of 4-sided die roll. - Mohammed Yaseen, Feb 23 2023

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approved

editing

#39 by N. J. A. Sloane at Thu Aug 04 05:53:51 EDT 2022

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proposed

approved

#38 by Amiram Eldar at Thu Aug 04 05:30:11 EDT 2022

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editing

proposed

#37 by Amiram Eldar at Thu Aug 04 05:02:32 EDT 2022

FORMULA

Equals 0.1 * Sum_{k>=0} binomial(2*k,k)/20^k. - Amiram Eldar, Aug 04 2022

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approved

editing

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Last modified August 29 11:15 EDT 2024. Contains 375512 sequences. (Running on oeis4.)