How to find/generate a 6 variable Bent Function?

Question

I want to find a Bent Function with 6 variables. I read some papers about how to generate Boolean Functions, but I don't want to implement an algorithm from zero just to find one function. It is also quite easy to test wether a function is Bent or not. But since Bent Functions are very sparse in 6 dimensions, it will take a long time to find a Bent Function with random (or heuristic) search.

I also searched for something like a database for Boolean/Bent functions, but could not find any. I just need one (random) Bent Function, how can I find one ?

Answer 1

I found 4 6-variable Bent functions:

I took the screenshot a while ago, so I do not remember the source.