cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A078361 Minimal positive solution a(n) of Pell equation a(n)^2 - D(n)*b(n)^2 = +4 or -4 with D(n)=A077425(n). The companion sequence is b(n)=A077058(n).

Table of values

n a(n)
1 1
2 3
3 8
4 5
5 5
6 46
7 12
8 64
9 7
10 7
11 302
12 39
13 16
14 25
15 2136
16 9
17 9
18 1000
19 29
20 11208
21 20
22 82
23 261
24 1552
25 11
26 11
27 33710
28 173
29 3488
30 190
31 24
32 61
33 4354
34 213
35 23550
36 13
37 13
38 124846
39 1305
40 136
41 110
42 3528264
43 28
44 1030190
45 43
46 93102
47 73
48 7688126
49 15
50 15
51 46312
52 77

List of values

[1, 3, 8, 5, 5, 46, 12, 64, 7, 7, 302, 39, 16, 25, 2136, 9, 9, 1000, 29, 11208, 20, 82, 261, 1552, 11, 11, 33710, 173, 3488, 190, 24, 61, 4354, 213, 23550, 13, 13, 124846, 1305, 136, 110, 3528264, 28, 1030190, 43, 93102, 73, 7688126, 15, 15, 46312, 77]