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HyperNeutrino
HyperNeutrino
1:53 AM
@user202729 None intentionally; any ordering is merely a result of the specific implementation of the algorithm.
 
dylnan
dylnan
2:26 AM
Are you all talking about the polyominoes sequence?
 
user202729
user202729
@dylnan No.
About A109 of HyperNeutrino.
(that one is easy enough, not worth talking about)
(if you don't care about efficiency)
 
dylnan
dylnan
How long before the challenge "ends"?
 
user202729
user202729
A lot of time. 4 days. Who cares...
(ok, if you don't start working on it soon, you may have to do the challenge till 2 AM like me, so be careful)
 
 
1 hour later…
user202729
user202729
3:48 AM
^ That's the 13 graphs I got. What's missing?
 
 
4 hours later…
user202729
user202729
8:08 AM
Ok, I conclude that it's impossible. So the algorithm must be correct, and any bug is because of mistakes in implementation.
 
 
1 hour later…
user202729
user202729
9:31 AM
Those are indeed pairwise non-isomorphic with each other.
Mathematica conveniently have builtin for all of them.
downloading data
 
user202729
user202729
10:07 AM
Ok, almost done. Only {8, 1} left. (somehow GraphData["Triangulated"] missed that...)
 
user202729
user202729
10:37 AM
^ That one is missing.
 
 
3 hours later…
user202729
user202729
1:26 PM
Seems that there are some problems before 5...
 
user202729
user202729
2:08 PM
I think I knew what's the problem...
 
 
1 hour later…
user202729
user202729
3:35 PM
So now I try to add about 10 bytes to the code and then rerun it for 5. I probably need more efficient isomorphism checker...
Yay!!!! 14 now!!!! @HyperNeutrino
 
user202729
user202729
Ok, about the next sequence A104.
in The Nineteenth Byte, yesterday, by user202729
Any idea which format is this? Search for .w file format doesn't help. (this is overkill for the next OEIS sequence, but it is suggested by KSmarts, and I like learning new things anyway - if I failed I will use brute-force solution)
in The Nineteenth Byte, yesterday, by user202729
(probably) compiled it to tex, but it is full of errors now.
in The Nineteenth Byte, yesterday, by user202729
Currently I get polynum.tex
^ Anyone can help with compiling the polynum.tex file above?
 
 
2 hours later…
NieDzejkob
NieDzejkob
6:16 PM
Come on, reading the raw CWEB files is easy
 
 
4 hours later…
dylnan
dylnan
9:48 PM
The tex/.w files from here are pretty messed up
I can't get any to compile. Deleting all the stuff that causes errors but there are too many
There is a mathematica notebook linked on this mathworld page but my mathematica license is out of date right now so I can't open it
@user202729 are you thinking of writing the next one? What language would you use?
Also, this would be helpful but I don't think we can use mathematica right now
 

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