Not work for this case:ThE_wRonG-CaSe

It was not easy, I work with a paper a long time and finally i found the pattern bu my self

It is sometimes useful to work with the binary representation of an integer rather than its decimal form. For example, each individual bit in the number could have a significance of its own : see bit fields. By looking at the binary representation you can immediatly figure out which bits are set.

Thanks for your feed, cheers :)

The inner bracket {} denotes an object body.

As for the outer bracker (), it's here so that the inner bracket isn't treated as function body instead, which will cause errors.

I remember working this one out on a piece of paper. Was stuck a bit as with a lot of other g964 katas :) (he makes some mind-boggling ones) but there is one site that can help you with sequences sometimes called oeis.org. Other than that writing it down on paper is the best advice I can give you :)

[message] represents the key used to access the appropriate value in the object defined within the curly braces. This is the same as accessing a property of any old object using bracket notation -- e.g. obj["propertyname"].

Check out if Lukas knows JavaScript ;)

Thanks for your test, solve and feedback ;-)

\1\2\3 is not so correct ;-)