The Pell equation, by Edward Everett Whitford.

THE PELL EQUATION 177
1756 41 1 9 2 (20)
75 8 39 (4)
1757 41 1 (10)
76 (7)
1758 41 1 (12)
77 (6)
1759 41 1 15 1 3 1 2 1 1 3 1 5 4 1 3 5 3 27 1 1
78 5 63 18 51 25 39 42 19 57 14 17 54 21 15 26 3 53 30
1 4 1 13 6 2 1 1 1 2 2 11 1 1 3 2 8 1
49 15 65 6 13 30 41 35 42 27 34 7 45 38 21 35 9 67
7 2 (41)
10 39 (2)
1760 41 1 (19)
79 (4)
1761 41 1 (26)
80 (3)
1762 41 1 (40)
81 (2)
1763 41 (1)
(82)
1765 42 (84)
(1)
1766 42 (42)
(2)
1767 42 (28)
(3)
1768 42 (21)
(4)
1769 42 16 1 4 3 (6) (6)
5 65 16 25 (13) (13)
1770 42 (14)
(6)
1771 42 (12)
(7)
1772 42 10 1 1 (20)
8 41 43 (4)
1773 42 9 2 1 (8)
9 28 53 (9)
1774 42 8 2 2 2 1 27 2 1 2 7 3 1 1 8 1 3 1 3 1
10 33 30 25 58 3 31 43 30 11 23 38 45 9 61 18 55 19 46
1 1 3 5 2 1 13 2 1 4 1 16 (42)
33 45 22 15 27 55 6 29 50 15 66 5 (2)
1775 42 7 1 1 1 5 2 1 (2)
11 50 31 49 14 29 46 (25)
13