The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A347823 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A347823

Triangle read by rows: T(n,k) = (n+k+1)*binomial(n,k), 0 <= k <= n.
(history; published version)

#20 by OEIS Server at Sun Jan 07 16:27:00 EST 2024

LINKS

Andrew Howroyd, <a href="/A347823/b347823_1.txt">Table of n, a(n) for n = 0..1325</a> (rows 0..50)

#19 by Alois P. Heinz at Sun Jan 07 16:27:00 EST 2024

STATUS

proposed

approved

Discussion

Sun Jan 07

16:27

OEIS Server: Installed first b-file as b347823.txt.

#18 by Andrew Howroyd at Sun Jan 07 16:26:03 EST 2024

STATUS

editing

proposed

#17 by Andrew Howroyd at Sun Jan 07 16:18:18 EST 2024

LINKS

Andrew Howroyd, <a href="/A347823/b347823_1.txt">Table of n, a(n) for n = 0..1325</a> (rows 0..50)

STATUS

approved

editing

#16 by Bruno Berselli at Sun Jan 23 15:13:40 EST 2022

STATUS

reviewed

approved

#15 by Michel Marcus at Sun Jan 23 14:45:19 EST 2022

STATUS

proposed

reviewed

#14 by Stefano Spezia at Sun Jan 23 12:34:42 EST 2022

STATUS

editing

proposed

Discussion

Sun Jan 23

13:40

Jules Beauchamp: Jon, I'm not sure why the date doubled. It was electronically supplied. 
Andrew, thank you for your helpful advice for the future and amendments. I'm new to this, so all help gratefully received.

#13 by Stefano Spezia at Sun Jan 23 12:34:32 EST 2022

FORMULA

Row g.f.: (1 + x)^(n-1)*(1 + n + x + 2*n*x). - Stefano Spezia, Jan 23 2022

STATUS

proposed

editing

#12 by Andrew Howroyd at Sun Jan 23 10:35:49 EST 2022

STATUS

editing

proposed

#11 by Andrew Howroyd at Sun Jan 23 10:34:32 EST 2022

FORMULA

T(n,k) = A094727(n,+1,k)*A007318(n,k).

STATUS

proposed

editing

Discussion

Sun Jan 23

10:35

Andrew Howroyd: In the formula it needs to be A094727(n+1,k): since A094727 has offset 1 and 0 <= k < n. Fixed.