The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A120788 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A120788

Numerators of partial sums of Catalan numbers scaled by powers of -1/4.
(history; published version)

#20 by Charles R Greathouse IV at Thu Sep 08 08:45:26 EDT 2022

PROG

(MAGMAMagma) [Numerator((&+[(-1/4)^k*Binomial(2*k, k)/(k+1): k in [0..n]])): n in [0..30]]; // G. C. Greubel, Mar 27 2018

Discussion

Thu Sep 08

08:45

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

#19 by Wolfdieter Lang at Thu Aug 29 17:35:46 EDT 2019

STATUS

editing

approved

#18 by Wolfdieter Lang at Thu Aug 29 17:35:37 EDT 2019

LINKS

W. Lang, <a href="/LANGCHANGE/A120788/a120788.texttxt">Rationals r(n) and limit.</a>

STATUS

approved

editing

#17 by N. J. A. Sloane at Wed Aug 28 09:25:23 EDT 2019

LINKS

W. Lang, <a href="http://www.itp.kit.edu/~wl/EISpubLANGCHANGE/A120788.text">Rationals r(n) and limit.</a>

Discussion

Wed Aug 28

09:25

OEIS Server: https://oeis.org/edit/global/2824

#16 by Alois P. Heinz at Mon Apr 09 10:02:12 EDT 2018

STATUS

proposed

approved

#15 by Michel Marcus at Fri Mar 30 07:51:07 EDT 2018

STATUS

editing

proposed

#14 by Michel Marcus at Fri Mar 30 07:50:52 EDT 2018

PROG

(GAP) List(List([0..25], n->Sum([0..n], k->(-1/4)^k*Binomial(2*k, k)/(k+1))), NumeratorRat); # Muniru A Asiru, Mar 30 2018

STATUS

proposed

editing

Discussion

Fri Mar 30

07:51

Michel Marcus: I guess this is GAP because of NumeratorRat

#13 by Muniru A Asiru at Fri Mar 30 02:45:09 EDT 2018

STATUS

editing

proposed

#12 by Muniru A Asiru at Fri Mar 30 02:43:57 EDT 2018

PROG

List(List([0..25], n->Sum([0..n], k->(-1/4)^k*Binomial(2*k, k)/(k+1))), NumeratorRat); # Muniru A Asiru, Mar 30 2018

STATUS

proposed

editing

#11 by Michel Marcus at Fri Mar 30 01:31:12 EDT 2018

STATUS

editing

proposed