The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A065446

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A065446

Decimal expansion of Product_{k>=1} (1-1/2^k)^(-1).
(history; published version)

#53 by Bruno Berselli at Tue Jan 19 05:49:13 EST 2021

STATUS

reviewed

approved

#52 by Joerg Arndt at Tue Jan 19 04:04:58 EST 2021

STATUS

proposed

reviewed

#51 by Michel Marcus at Tue Jan 19 02:50:40 EST 2021

STATUS

editing

proposed

#50 by Michel Marcus at Tue Jan 19 02:50:36 EST 2021

LINKS

Igor Pak, Greta Panova, and Damir Yeliussizov, <a href="https://arxiv.org/abs/1804.04693">On the largest Kronecker and Littlewood-Richardson coefficients</a>, arXiv:1804.04693 [math.CO], 2018. [p. 13]

STATUS

proposed

editing

#49 by Amiram Eldar at Tue Jan 19 01:48:28 EST 2021

STATUS

editing

proposed

#48 by Amiram Eldar at Tue Jan 19 01:33:56 EST 2021

CROSSREFS

Cf. A000041, A002884, A048651, A048652, A006099.

#47 by Amiram Eldar at Tue Jan 19 01:32:57 EST 2021

LINKS

J. Jonathan Sondow and E. Eric W. Weisstein, <a href="http://mathworld.wolfram.com/WallisFormula.html">MathWorld: Wallis Formula</a>.

#46 by Amiram Eldar at Tue Jan 19 01:31:34 EST 2021

FORMULA

Equals Sum_{n>=0} A000041(n)/2^n. - Amiram Eldar, Jan 19 2021

CROSSREFS

Cf. A000041, A048652, A006099.

STATUS

approved

editing

#45 by N. J. A. Sloane at Sat Nov 28 20:10:15 EST 2020

STATUS

proposed

approved

#44 by Hugo Pfoertner at Sat Nov 28 11:58:00 EST 2020

STATUS

editing

proposed

Discussion

Sat Nov 28

12:23

Michel Marcus: not sure  (constant) is really necessary

14:42

Hugo Pfoertner: We don't have an established procedure for this. But I can remember having even seen the more detailed explanation "if (the sequence is) interpreted as a constant". A reasonable convention would be to use the omission of indexing when referring to "cons" sequences as an indication that the entire content is to be interpreted as a single number.