The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A017713 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A017713

Binomial coefficients C(n,49).
(history; published version)

#31 by Charles R Greathouse IV at Thu Sep 08 08:44:43 EDT 2022

PROG

(MAGMAMagma) [Binomial(n, 49): n in [49..80]]; // G. C. Greubel, Nov 03 2018

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#30 by Bruno Berselli at Wed Dec 16 05:55:30 EST 2020

STATUS

reviewed

approved

#29 by Michel Marcus at Wed Dec 16 01:44:28 EST 2020

STATUS

proposed

reviewed

#28 by Amiram Eldar at Wed Dec 16 01:42:57 EST 2020

STATUS

editing

proposed

#27 by Amiram Eldar at Wed Dec 16 01:34:06 EST 2020

FORMULA

From Amiram Eldar, Dec 16 2020: (Start)

Sum_{n>=49} 1/a(n) = 49/48.

Sum_{n>=49} (-1)^(n+1)/a(n) = A001787(49)*log(2) - A242091(49)/48! = 13792273858822144*log(2) - 302317348758761304758836609908210929 / 31622903104550986800 = 0.9807421943... (End)

CROSSREFS

Cf. A011000, A011001, A001787, A242091.

STATUS

approved

editing

#26 by N. J. A. Sloane at Sat Dec 07 12:18:20 EST 2019

PROG

(Sage) [binomial(n, 49) for n in xrangerange(49, 67)] # Zerinvary Lajos, May 23 2009

Discussion

Sat Dec 07

12:18

OEIS Server: https://oeis.org/edit/global/2837

#25 by Andrew Howroyd at Sat Nov 03 12:01:47 EDT 2018

STATUS

reviewed

approved

#24 by Michel Marcus at Sat Nov 03 06:05:50 EDT 2018

STATUS

proposed

reviewed

#23 by G. C. Greubel at Sat Nov 03 02:55:51 EDT 2018

STATUS

editing

proposed

#22 by G. C. Greubel at Sat Nov 03 02:54:21 EDT 2018

FORMULA

G.f.: 1x^49/(1-x)^50.

STATUS

proposed

editing

Discussion

Sat Nov 03

02:55

G. C. Greubel: Originally chose to leave off the leading zeros; the egf wasn't as friendly to do so. Added leading zeros in.