Speaking only for myself, I think it's because of how I would do it in Java. Without the implicit conversion to `WrappedString` which Scala offers, Java makes it necessary to take the detour through a `StringBuilder`, so a "one-liner" would not be very readable. Plus the `==` operator is strictly for referential equality in Java.

But since Scala makes it possible to neatly write it as you suggest, I will edit the article accordingly.

If you spot any instances in the OEIS where it can be rewritten as you suggest, we should probably edit accordingly.


is a composer and photographer from Detroit, Michigan. He has been working on a Java program to display certain mathematical diagrams.

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