Science

NNadir

(34,533 posts) Sat Dec 17, 2022, 11:20 AM Dec 2022

I case you ever need it: The Online Encyclopedia of Integer Sequences.

It's here: The Online Encyclopedia of Integer Sequences.

Here's what they say about themselves (while asking for donations):

...we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

The Wikipedia Page about it: On-Line Encyclopedia of Integer Sequences.

In case you're wondering, I came across it while looking up the nuclear shell "magic numbers" for a talk I'm giving next week.

8 replies

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I case you ever need it: The Online Encyclopedia of Integer Sequences. (Original Post) NNadir Dec 2022 OP

I'm waiting for the movie. n/t NanceGreggs Dec 2022 #1

+1 2naSalit Dec 2022 #2

I'm sure it will be up for an academy award, unless Fibonacci is played by John Travolta. n/t. NNadir Dec 2022 #5

Kick. 2naSalit Dec 2022 #3

Somehow, I've made it this far. nt Laffy Kat Dec 2022 #4

the Prouhet-Thue-Morse sequence old as dirt Jan 2023 #6

That is a really interesting sequence, of which I was unaware. Thanks! NNadir Jan 2023 #8

Math and OCD - My story with the Thue-Morse sequence old as dirt Jan 2023 #7

NanceGreggs

(27,835 posts)

1. I'm waiting for the movie. n/t

Reply to NNadir (Original post)

Sat Dec 17, 2022, 11:30 AM

Dec 2022

2naSalit

(92,324 posts)

2. +1

Reply to NanceGreggs (Reply #1)

Sat Dec 17, 2022, 01:15 PM

Dec 2022

NNadir

(34,533 posts)

5. I'm sure it will be up for an academy award, unless Fibonacci is played by John Travolta. n/t.

Reply to NanceGreggs (Reply #1)

Sat Dec 17, 2022, 01:58 PM

Dec 2022

2naSalit

(92,324 posts)

3. Kick.

Reply to NNadir (Original post)

Sat Dec 17, 2022, 01:18 PM

Dec 2022

I'll never use it but it is good info for those who would.

Or, merely for those who might be interested.

Laffy Kat

(16,515 posts)

4. Somehow, I've made it this far. nt

Reply to NNadir (Original post)

Sat Dec 17, 2022, 01:28 PM

Dec 2022

old as dirt

(1,972 posts)

6. the Prouhet-Thue-Morse sequence

Reply to NNadir (Original post)

Fri Jan 6, 2023, 08:18 PM

Jan 2023

I've looked up this sequence on it before.

0, 1, 1, 0, 1, 0, 0, 1, ...

https://oeis.org/search?q=0%2C1%2C1%2C0%2C1%2C0%2C0%2C1&sort=&language=english&go=Search

The Thue-Morse Sequence (with visualizations)

NNadir

(34,533 posts)

8. That is a really interesting sequence, of which I was unaware. Thanks!

Reply to old as dirt (Reply #6)

Sat Jan 7, 2023, 12:34 AM

Jan 2023

old as dirt

(1,972 posts)

7. Math and OCD - My story with the Thue-Morse sequence

Reply to NNadir (Original post)

Fri Jan 6, 2023, 08:26 PM

Jan 2023

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