The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A179255 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A179255

Number of partitions of n into distinct parts such that the successive differences of consecutive parts are nondecreasing.
(history; published version)

#45 by OEIS Server at Sat Jan 09 09:07:23 EST 2021

LINKS

Fausto A. C. Cariboni, <a href="/A179255/b179255_1.txt">Table of n, a(n) for n = 0..1000</a> (terms 0..241 from Joerg Arndt)

#44 by Michel Marcus at Sat Jan 09 09:07:23 EST 2021

STATUS

reviewed

approved

Discussion

Sat Jan 09

09:07

OEIS Server: Installed new b-file as b179255.txt.  Old b-file is now b179255_1.txt.

#43 by Joerg Arndt at Sat Jan 09 07:58:55 EST 2021

STATUS

proposed

reviewed

#42 by Fausto A. C. Cariboni at Sat Jan 09 07:48:33 EST 2021

STATUS

editing

proposed

#41 by Fausto A. C. Cariboni at Sat Jan 09 07:48:17 EST 2021

LINKS

Joerg Arndt, Fausto A. C. Cariboni, <a href="/A179255/b179255_1.txt">Table of n, a(n) for n = 0..1000</a> (terms 0..241</a> from Joerg Arndt)

STATUS

approved

editing

#40 by Peter Luschny at Thu Feb 27 16:43:30 EST 2020

STATUS

proposed

approved

#39 by F. Chapoton at Thu Feb 27 15:18:06 EST 2020

STATUS

editing

proposed

#38 by F. Chapoton at Thu Feb 27 15:17:52 EST 2020

PROG

.... has_nondecreasing_diffs = lambda x: min(differences(x, 2)) >= 0

.... allowed = lambda x: len(x) < 3 or has_nondecreasing_diffs(x)

.... return len([x for x in Partitions(n, max_slope=-1).filter(lambda x: if allowed(x[::-1])).cardinality(]) # _D. S. McNeil_, Jan 06 2011

# D. S. McNeil, Jan 06 2011

STATUS

approved

editing

Discussion

Thu Feb 27

15:18

F. Chapoton: adapt sage code for python3

#37 by Bruno Berselli at Fri Oct 12 10:48:43 EDT 2018

STATUS

proposed

approved

#36 by Seiichi Manyama at Fri Oct 12 10:07:00 EDT 2018

STATUS

editing

proposed