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Revision History for A229946 (Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
Height of the peaks and the valleys in the Dyck path whose j-th ascending line segment has A141285(j) steps and whose j-th descending line segment has A194446(j) steps.
(history; published version)
#46 by Jon E. Schoenfield at Sat Apr 01 21:02:32 EDT 2017
STATUS

editing

approved

#45 by Jon E. Schoenfield at Sat Apr 01 21:02:30 EDT 2017
COMMENTS

The master diagram of regions of the set of partitions of all positive integers is a total dissection of the first quadrant of the square grid in which the j-th horizontal line segments has length A141285(j) and the j-th vertical line segment has length A194446(j). For the definition of "region" see A206437. The first A000041(k) regions of the diagram represent the set of partitions of k in colexicographic order (see A211992). The length of the j-th horizontal line segment equals the largest part of the j-th partition of k and equals the largest part of the j-th region of the diagram. The length of the j-th vertical line segment (which is the line segment ending in the row j) equals the number of parts in the j-th region.

STATUS

approved

editing

#44 by Jon E. Schoenfield at Sun Mar 08 18:43:10 EDT 2015
STATUS

editing

approved

#43 by Jon E. Schoenfield at Sun Mar 08 18:43:07 EDT 2015
LINKS

_Omar E. Pol_, , <a href="http://www.polprimos.com/imagenespub/polpa408.jpg">Visualization of regions in a diagram for A006128</a>

STATUS

approved

editing

#42 by Bruno Berselli at Sat Sep 27 04:58:44 EDT 2014
STATUS

proposed

approved

#41 by Michel Marcus at Sat Sep 27 01:42:11 EDT 2014
STATUS

editing

proposed

#40 by Michel Marcus at Sat Sep 27 01:39:35 EDT 2014
COMMENTS

The master diagram of regions of the set of partitions of all positive integers is a total dissection of the first quadrant of the square grid in which the j-th horizontal line segments has length A141285(j) and the j-th vertical line segment has length A194446(j). For the definition of "region" see A206437. The first A000041(k) regions of the diagram represent the set of partitons partitions of k in colexicographic order (see A211992). The length of the j-th horizontal line segment equals the largest part of the j-th partition of k and equals the largest part of the j-th region of the diagram. The length of the j-th vertical line segment (which is the line segment ending in the row j) equals the number of parts in the j-th region.

STATUS

approved

editing

Discussion
Sat Sep 27
01:42
Michel Marcus: typo
#39 by T. D. Noe at Wed Nov 06 14:52:08 EST 2013
STATUS

proposed

approved

#38 by Omar E. Pol at Mon Nov 04 18:25:26 EST 2013
STATUS

editing

proposed

#37 by Omar E. Pol at Mon Nov 04 18:25:19 EST 2013
COMMENTS

The master diagram of regions of the set of partitions of all positive integers is a total dissection of the first quadrant of the square grid in which the j-th horizontal line segments has length A141285(j) and the j-th vertical line segment has length A194446(j). For the definition of "region" see A206437. The first A000041(k) regions of the diagram represent the set of partitons of k in colexicographic order (see A211992). The length of the j-th horizontal line segment equals the largest part of the j-th partition of k and equals the largest part of the j-th region of the diagram. The length of the j-th vertical line segment (which is the line segment ending in the row j) equals the number of parts in the j-th region.