The Pell equation, by Edward Everett Whitford.

170

THE PELL EQUATION

1621 40 3 1 4 1 1 1 1 1 1 2 3 1 5 1 15 3 1 26 11
21 52 15 44 33 37 36 35 39 28 19 55 12 65 5 20 59 3 7
2 6 1 5 3 19 1 4 2 2 1 1 8 2 1 3 6 2
36 11 60 13 25 4 63 15 31 27 35 44 9 28 45 21 12 33
3 (1) (1)
20 (39) (39)
1622 40 3 1 1 1 5 1 1 3 1 2 3 7 (40)
22 43 31 46 13 41 38 19 47 26 23 11 (2)
1623 40 3 2 (26)
23 34 (3)
1624 40 3 2 1 8 3 1 (10)
24 25 52 9 20 57 (7)
1625 40 3 4 1 2 (2) (2)
25 16 49 25 (29) (29)
1626 40 3 11 5 3 2 7 1 1 1 2 1 1 2 1 (12)
26 7 15 22 33 10 47 31 42 25 38 39 23 55 (6)
1627 40 2 1 (39)
27 53 (2)
1628 40 2 1 (6)
28 49 (11)
1629 40 2 1 3 2 1 2 1 1 6 1 3 5 1 19 2 1 15 2
29 45 20 27 44 25 36 43 11 55 20 13 65 4 27 52 5 37
(8)
(9)
1630 40 2 1 2 81 1 2 13 (16)
30 41 29 9 45 34 31 6 (5)
1631 40 2 1 1 2 (5)
31 37 38 29 (14)
1632 40 2 1 1 (19)
32 33 47 (4)
1633 40 2 2 3 2 4 37 26 1 4 11 2 19 2 2 1 8 3
33 29 21 32 17 24 11 3 63 16 7 27 51 8 33 24 53 9 21
1 (2)
48 (23)
1634 40 2 2 1 2 1 4 (40)
34 25 46 23 50 17 (2)
1635 40 2 3 2 1 (4)
35 21 26 49 (15)
1636 40 2 4 3 1 4 1 1 1 2 2 1 6 26 1 4 2 3 15
36 17 20 53 15 45 32 41 27 25 51 12 3 64 15 32 23 5
1 8 (20)
68 9 (4)
1637 40 2 5 1 2 1 2 19 1 6 (2) (2)
37 13 52 23 44 29 4 67 11 (31) (31)