We had some interesting discussions about what the first step in the sequence should be. This pattern seems like the H family, but does it actually begin with a single cube. Its creators think so. Here they are, explaining their reasoning.
It wasn't the only first step we discussed. What about this one?
How about these squares?
And what about this C family. Is one cube really the first step in the sequence?
We disagreed about this, even after six people gave their reasoning.
What do you think?