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Old 2021-06-08, 06:50   #1
sweety439
 
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Default Is there a way to use bot to post many numbers in a sequence to factordb?

In thread https://mersenneforum.org/showthread.php?t=16445, there is a way to use bot to post many numbers for Aliquot sequence (also home primes sequence) in factordb, however, is there a way to use bot to post Bell(n), Euler(n), Pell(n), Tribonacci(n), Perrin(n), Padovan(n), Fubini(n), Motzkin(n), Wolstenholme(n), A(n), K(n), Partition(n), DistinctPartition(n), Sm(n), SmWl(n), and A000521(n) in factordb, for all 1<=n<=10000? Also for the first n digits for many mathematical constants (pi, e, gamma, sqrt(2), ln(2), golden ratio, ...) for all 1<=n<=10000?

Last fiddled with by sweety439 on 2021-06-08 at 06:57
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Old 2021-06-08, 07:33   #2
retina
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Quote:
Originally Posted by sweety439 View Post
Is there a way to use bot to post many numbers in a sequence to factordb?
Yes.

Am I going to tell you how?
No.

Many sites consider it abuse to automate large numbers of queries/posts. You might find your IP address gets blocked or something.
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Old 2021-06-10, 17:30   #3
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You should only add them as you factor them. In other words, don't add a number unless you want to factor it, or you want someone else to factor it, if there's anyone willing to do so. Numbers <10^69 are automatically sent to the DB workers to factor.

Also, I think the first 900 or so numbers of the form floor(pi*10^n) are already on the DB.

Last fiddled with by Stargate38 on 2021-06-10 at 17:32
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Old 2021-06-10, 19:06   #4
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Quote:
Originally Posted by Stargate38 View Post
You should only add them as you factor them. In other words, don't add a number unless you want to factor it, or you want someone else to factor it, if there's anyone willing to do so. Numbers <10^69 are automatically sent to the DB workers to factor.

Also, I think the first 900 or so numbers of the form floor(pi*10^n) are already on the DB.
I have already added all Bell numbers, all Euler zigzag numbers, and all Fubini numbers, both up to index 500, in last month, also, I have already added all Pell numbers and all Tribonacci numbers, both up to index 1000, in 2016 (I added these numbers one by one, not use bot)

There is already a project to factor the Euler zigzag numbers (this project includes the even-index Euler zigzag numbers and the numerator of the Bernoulli numbers, and factor the odd-index Euler zigzag numbers is equivalent to factor 2^(n+1)-1 (this is a Cunningham number) and factor the Bernoulli number B(n+1))

However, there seems to be no project to factor the Bell numbers, the Fubini numbers, the Pell numbers, the Tribonacci numbers, ... (at most to find large primes in these sequences) (this site is to factor (p^p-1)/(p-1) and (p^p+1)/(p+1) for prime p, i.e. the Pisano period of the Bell numbers mod p for prime p, not to factor the Bell numbers)

There is also a project to factor the partition numbers, and find large primes (e.g. 40000-digit partition(1289844341)), but not for the distinct partition numbers

Last fiddled with by sweety439 on 2021-06-10 at 19:39
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Old 2021-06-12, 07:09   #5
LaurV
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now we know who was polluting the DB all this time!

and we blamed the poor cmd for it!
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Old 2021-06-12, 14:42   #6
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Actually, cmd put a bunch of numbers on there, too. I've found quite a few from those years. Also, some of the users that have been banned indefinitely might be taking revenge as well (i.e. Samuel), but that's just speculation. It could be that there are so many people accessing the DB simultaneously that it just looks like flooding.
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