There were three phone interviews, and I had to code on a Google Doc. One interviewer was not able to make it to the interview, so instead, we conducted it a few days later.

That interview went terribly, mostly because I couldn't understand the interviewer's English. I did my best during the interview, and afterwards, I wrote to my recruiter explaining what happened.

A few days later, I was pleasantly surprised to hear I got the internship! My recruiter mentioned it was good that I had informed her of the situation. They discounted the feedback from that interview and would have re-interviewed me, but it was later in the year, and my scores from the first two interviews were good enough to advance me.

One interviewer asked something about Pascal's triangle and binary coefficients.