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What number comes next? The On-line Encyclopedia of Integer Sequences knows

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Re: What number comes next? The On-line Encyclopedia of Integer Sequences knows

#23

Does anyone know how it compares to the Cinco Encyclopedia of Numbers? Anyone have a recommendation for someone who might be new to numbers? https://youtu.be/rVtHrgdcvZA

cinco is a great resource, I'm on volume CCLXXIX and I'm still finding new numbers I've never even heard of like 2,737,829,283

Re: What number comes next? The On-line Encyclopedia of Integer Sequences knows

#26
post #25

Well, does the Encyclopedia knows what comes after 1,2,4,8,16? Hint: if you follow the Mathologer, you would know that there is a number different from 32…

There are some non-32 hits if you search for this prefix. https://oeis.org/search?q=1%2C2%2C4%2C8%2C16&language=englis...

Re: What number comes next? The On-line Encyclopedia of Integer Sequences knows

#27

I keep on meaning to finish a redesign of the oeis site that I started a few months ago[0]. I've only spent a day on it so far, but I'm hoping it makes the site far more approachable to new comers. [0] https://oeis.femto.dev/

Some feedback: it lacks a search button. I mean, you can type a sequence, but have to hit the enter key to search. I'd expect at least some mouse-pressable button to be there that searches too (either the magnifying glass that's already there, or a button labeled "search").

You may say that "it's good enough you can press enter", however the site starts out already showing you the digit sequence "1, 2, 3, 6, 11" so you don't need the keyboard, but no way to actually search for it using only the mouse.

Second feedback: it shows icons that look like a maple leaf in the top right without any explanation what it means, perhaps a tooltip could show what this maple leaf means? Idem for the other icons there.

Third feedback: you have to individually click a full expand and then in addition expand all the subsections to view them... at least a dedicated page to entries should show everything immediately.

Final most important feedback: it doesn't have individual URL's to the sequences anymore! That seems an important missing feature. It only shows results in ephemeral rendered boxes on the main page, no way to link to an individual entry! Clicking an entry should open its individual page. Middle mouse clicking should open it in a new tab like a real link does.

Re: What number comes next? The On-line Encyclopedia of Integer Sequences knows

#28
The following are real examples of submissions that were rejected:

A-numbers of sequences contributed by [your name] (however, this might be appropriate on your OEIS Wiki user page).

Experience points required for a Pokemon in the "erratic" experience group to be of level n.

The year 10^n decimal digits of pi were first computed (Not well-defined!)

Primes of the form n^3 + 2 n^2 + 37 n + 73.

Non-trivial circulation in decreasing order: numbers of the form lim_{x->+inf}(a[x]b) with b1.

You start at the number 1 and you add 2 until you get to the 4th number in the sequence, in which you then add the 1st and 3rd number of the sequence, which will give you 6. Then you do the same thing, adding 2 to each sequence, but for every 4th number you add the 1st and 3rd number before it.

Consecutive Quotients minus a third term x(k) = fix(ax(k-1)/x(k-2))-bx(k-3).

Prime numbers of the form 1 plus n x 10@r (@ means "to the power of") where n is an integer between 1 and 9 inclusive, and r is an integer greater than or equal to 0.

Concatenate a semiprime with a Fibonacci number to obtain a palindrome with at least two distinct digits.

The sequence 1,2,3 (and no further terms are known). The sequence 2,4,6 (and no further terms are known).

From https://oeis.org/wiki/Examples_of_what_not_to_submit

Re: What number comes next? The On-line Encyclopedia of Integer Sequences knows

#29
post #23

Does anyone know how it compares to the Cinco Encyclopedia of Numbers? Anyone have a recommendation for someone who might be new to numbers? https://youtu.be/rVtHrgdcvZA

cinco is a great resource, I'm on volume CCLXXIX and I'm still finding new numbers I've never even heard of like 2,737,829,283

I just got into the 30,000,000 range. Literally riveting.
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