The Pell equation, by Edward Everett Whitford.

THE PELL EQUATION 181
3 7 1 1 8 1 (41)
21 11 42 43 9 75 (2)
1832 42 1 4 (21)
68 17 (4)
1833 42 1 4 2 1 3 (28)
69 16 29 48 23 (3)
1834 42 1 4 1 2 1 1 2 5 3 9 4 1 13 2 8 (12)
70 15 54 25 42 39 31 15 26 9 17 65 6 39 10 (7)
1835 42 1 5 7 1 1 1 1 1 3 1 (7)
71 14 11 49 34 41 35 46 19 61 (10)
1836 42 1 5 1 1 1 110 9 2 2 1 (20)
72 13 47 36 35 49 89 35 25 59 (4)
1837 42 1 6 6 2 4 1 1 2 1 1 1 11 27 1 20 2 6
73 12 13 36 17 44 39 27 43 36 41 33 52 3 79 4 39 72
1 1 18 1 (6)
51 31 52 9 68 (11)
1838 42 1 6 1 4 5 1 11 2 2 3 2 (42)
74 11 62 17 14 67 7 34 31 22 37 (2)
1839 42 1 7 1 1 2 3 (28)
75 10 47 37 30 25 (3)
1840 42 1 8 1 1 5 (5)
76 9 44 41 15 (16)
1841 42 1 9 1 2 1 4 1 1 1 1 1 2 16 1 3 1 1 2 1
77 8 59 23 55 16 47 35 40 37 41 32 5 64 19 43 10 25 56
7 (12)
11 (7)
1842 42 1 11 3 1 1 1 5 2 (42)
78 7 23 46 33 49 14 39 (2)
1843 42 1 13 3 9 4 1 1 1 27 1 (41)
79 6 27 9 18 49 31 54 3 81 (2)
1844 42 1 16 5 3 4 4 1 4 1 1 3 1 2 1 (20)
80 5 16 25 19 17 59 16 4341 20 53 23 61 (4)
1845 42 1 20 (2)
81 4 (41)
1846 42 1 27 1 1 1 8 1 7 1 2 3 2 1 1 3 3 (6)
82 3 55 30 53 9 69 10 55 27 23 30 39 43 22 25 (13)
1847 42 1 (41)
83 (2)
1848 42 (1)
(84)
1850 43 (86)
(1)