The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A360371 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A360371

Triangle read by rows: lexicographically earliest sequence of distinct positive integers such that each column contains only multiples of the first number in that column. See example.
(history; published version)

#41 by Michael De Vlieger at Thu Mar 30 11:51:56 EDT 2023

STATUS

proposed

approved

#40 by Rémy Sigrist at Thu Mar 30 11:20:25 EDT 2023

STATUS

editing

proposed

#39 by Rémy Sigrist at Thu Mar 30 11:19:58 EDT 2023

LINKS

<a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

Discussion

Thu Mar 30

11:20

Rémy Sigrist: added b-file + program + xref

#38 by Rémy Sigrist at Thu Mar 30 11:19:45 EDT 2023

LINKS

Rémy Sigrist, <a href="/A360371/b360371.txt">Table of n, a(n) for n = 1..10011</a> (first 141 rows flattened)

Rémy Sigrist, <a href="/A360371/a360371.gp.txt">PARI program</a>

CROSSREFS

Cf. A194982, A361251 (inverse).

STATUS

approved

editing

#37 by Michael De Vlieger at Thu Mar 30 09:17:23 EDT 2023

STATUS

reviewed

approved

#36 by Kevin Ryde at Thu Mar 30 01:25:47 EDT 2023

STATUS

proposed

reviewed

#35 by Samuel Harkness at Mon Mar 27 12:12:04 EDT 2023

STATUS

editing

proposed

Discussion

Thu Mar 30

01:25

Kevin Ryde: Off topic: Samuel, would you double-check your comment over in draft A361429 at next convenient moment please.

#34 by Samuel Harkness at Mon Mar 27 12:11:53 EDT 2023

NAME

Triangle read by rows: lexicographically earliest sequence of distinct positive integers such that each column contains only multiples of the first number in that column. See example.

STATUS

proposed

editing

#33 by Samuel Harkness at Mon Mar 27 11:15:27 EDT 2023

STATUS

editing

proposed

Discussion

Mon Mar 27

11:17

Michel Marcus: name has a shift problem

#32 by Samuel Harkness at Mon Mar 27 11:14:19 EDT 2023

NAME

Triangle read by rows: lexicographically earliest sequence of distinct positive integers such that each column contains only positive multiples of the first number of the in that column. No number is repeated. Append columns from left to right, then make a new column with the smallest unused positive numberSee example.

EXAMPLE

23, 27, 30, 40, 52, 51, 44, 28;

STATUS

proposed

editing

Discussion

Mon Mar 27

11:15

Samuel Harkness: Thanks Neal. Maybe the Name should also say something like "the nth row has n columns"?