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Revision History for A006487

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Showing entries 1-10 | older changes

A006487

Denominators of greedy Egyptian fraction for square root of 2.
(history; published version)

#49 by Danny Rorabaugh at Wed Oct 04 00:09:03 EDT 2017

STATUS

editing

approved

#48 by Danny Rorabaugh at Wed Oct 04 00:08:57 EDT 2017

LINKS

Manfred Scheucher, <a href="/A006487/a006487.sage.txt">Sage Script</a>.

D. S. Kluk & and N. J. A. Sloane, <a href="/A002050/a002050_3.pdf">Correspondence, 1979</a>.

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/EgyptianFraction.html">Egyptian Fraction</a>.

STATUS

proposed

editing

#47 by Rachel Barnett at Tue Oct 03 22:03:17 EDT 2017

STATUS

editing

proposed

#46 by Rachel Barnett at Tue Oct 03 22:03:12 EDT 2017

LINKS

D. S. Kluk & N. J. A. Sloane, <a href="/A002050/a002050_3.pdf">Correspondence, 1979</a>

STATUS

approved

editing

#45 by Jon E. Schoenfield at Mon Feb 27 01:23:28 EST 2017

STATUS

editing

approved

#44 by Jon E. Schoenfield at Mon Feb 27 01:23:13 EST 2017

COMMENTS

Conjecture: Let a(n) = 2^2^(n + b(n)), then b(n) converges to a constant that is about 0.2163... - Manfred Scheucher, Aug 17 2015

FORMULA

a(n) = ceiling(1/(sqrt(2) - sum_Sum_{j=0..n-1} 1/a(j))). - Jon E. Schoenfield, Dec 26 2014

STATUS

approved

editing

#43 by N. J. A. Sloane at Tue Aug 18 17:53:10 EDT 2015

STATUS

editing

approved

#42 by N. J. A. Sloane at Tue Aug 18 17:52:38 EDT 2015

LINKS

Manfred Scheucher, <a href="/A006487/b006487_a006487_1.txt">Table of n, a(n) for n = 0..14</a>

STATUS

approved

editing

Discussion

Tue Aug 18

17:53

N. J. A. Sloane: I changed the 15-line file to an a-file, is it OK now?

#41 by OEIS Server at Tue Aug 18 17:49:30 EDT 2015

LINKS

Manfred Scheucher, <a href="/A006487/b006487_2.txt">Table of n, a(n) for n = 0..11</a>

#40 by N. J. A. Sloane at Tue Aug 18 17:49:29 EDT 2015

STATUS

proposed

approved

Discussion

Tue Aug 18

17:49

OEIS Server: Installed new b-file as b006487.txt.  Old b-file is now b006487_2.txt.