1. A096456 (numerators of Convergents to Pi/2)

2. In gConvergents() the elements of a are the partial numerators and the elements of b the partial denominators

3. Convergents are a little trickier: the numerators are in integer sequence A002485 and the denominators are in sequence A002486

4. A002486 Apart from two leading terms (which are present by convention), denominators of Convergents to Pi (A002485 and A046947 give numerators).(Formerly M4456 N1886)

5. 2.3 Relations between Convergents In this section, we see some properties of the simple continued fractions in terms of the numerators and denominators appearing in the Convergents