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User:Daniel Forgues

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Daniel Forgues Kephalopod.jpeg
kephalopod
B.Sc. (Physics)
Université de
Montréal (1982)


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OEIS

Neil J. A. Sloane: Home Page

Nicolas Gauvrit, Jean-Paul Delahaye, Hector Zenil, Sloane's Gap. Mathematical and Social Factors Explain the Distribution of Numbers in the OEIS (2011)

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

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

OeisWiki:Main OEIS categories

OEIS Server Features

My submissions and/or edits

My allocated A-numbers

My drafts (My sequences awaiting review)

My unsubmitted drafts

My submitted drafts

OEIS sequences which I submitted

OEIS sequences which I submitted and/or edited

All editors submissions and/or edits

Allocated A-numbers

OEIS contributors drafts (Sequences awaiting review)

OEIS contributors unsubmitted drafts

OEIS contributors submitted drafts

Deleted sequences


OEIS Wiki

My contributions

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

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

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My subpages

User:Daniel Forgues/Contributions  (Partial commented lists of my previous, in progress and future contributions.)
User:Daniel Forgues/Copy and paste  (Tables and other stuff ready for copying and pasting.)



Coordinated Universal Time
(UTC)


Tuesday, November 26, 2024

Clockface.png

16:44


OEIS Wiki Server Time
Eastern Time (ET)
[1]


Tuesday, November 26, 2024

Clockface.png

11:44


Sequence of the Day

Sequence of the Day for November 26

A000055: Number of trees with
n, n   ≥   0,
unlabeled nodes.
{ 1, 1, 1, 1, 2, 3, 6, 11, 23, 47, 106, 235, ... }

Trees with
n
unlabeled nodes[2]

n
Trees
0
 
Null tree
1
2
●—●
3
●—●—●
4
             ●
            /
●—●—●—●  ●—●  
            \
             ●
5
                 ●    ●
                /     |
●—●—●—●—●  ●—●—●    ●—●—●  
                \     |
                 ●    ●

This is the sequence for the example search on the front page of the OEIS. This Thanksgiving we are thankful for, among other things, the OEIS, which is an invaluable resource in many mathematical and scientific endeavors.

__________

  1. https://www.timeanddate.com/time/zones/et
  2. Weisstein, Eric W., Tree, from MathWorld—A Wolfram Web Resource.


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http://tex.loria.fr/general/Voss-Mathmode.pdf
https://www.tug.org/~hvoss/PDF/mathmode.pdf
Michael Kohlhase, Using LaTeX as a Semantic Markup Format

CAS

Mathics - A free, light-weight alternative to Mathematica
SageMath in Research
sage­tex – Embed Sage code and plots into LaTeX


mailto: Daniel Forgues 


Notes