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Given eg x = 2y and x == 6 (mod 8), we do not know the value of y (mod 8), but we can say y == 3 (mod 4). Do we already have some variant of divmod, say div2mod, that would return (3, 4) for div2mod(6…
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This method uses discrete combinatorics and is comparatively novel compared to other search techniques. It is very interesting from a philosophical perspective of path semantics.
### Background
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I tried (unsuccessfully) to find a next term for https://oeis.org/A348651
Using GMP:
```
#include
#include
#include
#define _FAC_13 6227020800
void f1 (uint64_t x)
{
mpz_t tm…
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Quoting Jon from https://oeis.org/history?seq=A354672 :
> (There’s a bug in the interface here — lamented for years, but still not fixed — that makes it very easy to accidentally post the same commen…
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[get_oeis_name_and_values/A005132](https://numberscope.colorado.edu/api/get_oeis_name_and_values/A005132)
is currently returning a 500 on the production server
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## The dependency [node-fetch](https://github.com/bitinn/node-fetch) was updated from `2.3.0` to `2.4.0`.
🚨 [View failing branch](https://github.com/danwdart/oeis/compare/master...danwdart:greenkeep…
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To reproduce: Pick a totally random A-number the database has not seen before. Add it as an OEIS sequence. Wait 1-2 seconds. Then up pops a "AxiosError: Network Error". Reload the page and try a…
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The three values 209, 589, and 629 are passed as Lucas pseudoprimes, whereas by the standard definition of such, they are not.
They in fact make it all the way through to the last line of the test, w…
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Ce module est-il utile pour le ppp?
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On the sequence https://oeis.org/A006577, nothing in ui2 works (none of the visualizers) since we are receiving
`this.seq.first = Infinity` and `this.seq.last = -Infinity`