The On-Line Encyclopedia of Integer Sequences® (OEIS®)

The OEIS is supported by the many generous donors to the OEIS Foundation.

Revision History for A187783

(Underlined text is an addition; strikethrough text is a ~~deletion~~.)
newer changes | Showing entries 11-20 | older changes

A187783

De Bruijn's triangle, T(m,n) = (m*n)!/(n!^m) read by downward antidiagonals.
(history; published version)

#54 by Alois P. Heinz at Tue Sep 14 21:04:54 EDT 2021

STATUS

editing

approved

#53 by Alois P. Heinz at Tue Sep 14 21:03:58 EDT 2021

CROSSREFS

Another version is A089759. Diagonal gives: A034841. - Alois P. Heinz, Jan 23 2013

Another version is A089759.

Main diagonal gives: A034841.

Row sums of the triangle: A248827.

STATUS

approved

editing

#52 by N. J. A. Sloane at Wed Feb 08 12:31:37 EST 2017

STATUS

editing

approved

#51 by N. J. A. Sloane at Wed Feb 08 12:31:20 EST 2017

NAME

De Bruijn's triangle, T(m,n) = (m*n)!/(n!^m) read by downward antidiagonals.

STATUS

approved

editing

Discussion
Wed Feb 08	12:31	N. J. A. Sloane: Added "downwards" to definition

#50 by R. J. Mathar at Sun Nov 01 12:21:38 EST 2015

STATUS

editing

approved

#49 by R. J. Mathar at Sun Nov 01 12:21:31 EST 2015

KEYWORD

nonn,tabl,easy

STATUS

approved

editing

#48 by Alois P. Heinz at Sun Sep 13 16:38:07 EDT 2015

STATUS

proposed

approved

#47 by Michel Marcus at Sun Sep 13 14:19:40 EDT 2015

STATUS

editing

proposed

#46 by Michel Marcus at Sun Sep 13 14:19:34 EDT 2015

FORMULA

T(m,n) = (m*n)!/(n!^m)).

STATUS

proposed

editing

#45 by Jean-François Alcover at Sun Sep 13 13:07:31 EDT 2015

STATUS

editing

proposed

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 18 20:17 EDT 2024. Contains 375274 sequences. (Running on oeis4.)