User blog comment:MilkyWay90/My ordinal function/@comment-35881353-20180615192446

Well, this comment won't be answer, but rather a comment.

I have to admit your way of wording the notation is a bit confusing - is a(n) the same as a0(n); and furthermore what does ax(n) mean? I'd be much indebted to you if you tell me the answers, thank you.