[seqfan] Canonical bijection from positive integers to positive rationals.

[Frank Adams-watters]

There are two pairs of sequences claiming to be the canonical bijection from positive integers to positive rationals:

A020652/A020653, and
A038568/A038569.

Which do we want to actually be our canonical sequence?

I favor A020652/A020653. It seems cleaner to me.

Compare A038566/A038567, which is the basis for both of these.

Franklin T. Adams-Watters