The Pell equation, by Edward Everett Whitford.

THE PELL EQUATION

169

1601 40 (80)
(1)
1602 40 (40)
(2)
1603 40 26 1 2 8 1 1 3 1 2 (5)
3 53 26 9 42 37 19 46 27 (14)
1604 40 (20)
(4)
1605 40 (16)
(5)
1606 40 13 2 1 8 4 2 1 26 (40)
6 27 50 9 18 25 54 3 (2)
1607 40 11 2 3 1 2 1 6 1 1 4 5 1 1 (39)
7 34 19 49 22 53 11 41 38 17 14 37 43 (2)
1608 40 (10)
(8)
1609 40 8 1 9 7 5 4 1 4 1 1 5 1 1 1 1 1 15 2 2
9 65 8 11 15 16 55 15 39 40 13 45 32 39 31 48 5 33 25
1 2 1 1 1 2 2 1 (26) (26)
45 24 41 33 40 27 24 55 (3) (3)
1610 40 (8)
(10)
1611 40 7 3 1 1 (39)
11 22 35 45 (2)
1612 40 6 1 2 8 1 1 2 1 26 (20)
12 49 27 9 43 36 23 56 3 (4)
1613 40 (6) (6)
(13) (13)
1614 40 5 1 2 1 1 1 15 2 3 2 1 (12)
14 51 23 43 30 49 5 34 21 25 53 (6)
1615 40 5 2 1 8 (4)
15 26 51 9 (19)
1616 40 (5)
(16)
1617 40 4 1 2 1 1 4 (2)
17 49 24 37 41 16 (33)
1618 40 4 2 5 (3) (3)
18 33 14 (23) (23)
1619 40 4 4 2 15 1 1 1 5 11 3 7 1 2 1 1 1 1 1
19 17 35 5 50 29 47 14 7 25 10 53 23 41 34 37 35 38
1 1 (39)
31 49 (2)
1620 40 (4)
(20)