You are a math wiz. If not, here's a hint: The sequence follows an alternating repetition pattern, using simple addition to form its structure - specifically, the number four.

What Ono and his team have now discovered is that partitions —a concept that counts the ways a number can be broken down into sums of smaller integers— contain hidden patterns capable of revealing ...

In fact, cracking the one below calls for thinking that is quite nonmathematical. I don’t know where or when I first encountered this sequence—it must have been around middle school.