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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.

A338785 a(n) is the least number k such that continued fraction for sqrt(prime(k)) has period n.

Table of values

n a(n)
1 1
2 2
3 13
4 4
5 6
6 8
7 21
8 11
9 30
10 14
11 18
12 27
13 44
14 41
15 29
16 43
17 37
18 34
19 68
20 36
21 42
22 94
23 147
24 58
25 88
26 47
27 186
28 93
29 142
30 75
31 110
32 90
33 112
34 67
35 178
36 228
37 82
38 114
39 100
40 222
41 187
42 105
43 191
44 143
45 204
46 131
47 180
48 115
49 172
50 177
51 197
52 133
53 263
54 272
55 353
56 175
57 231
58 242
59 322
60 157

List of values

[1, 2, 13, 4, 6, 8, 21, 11, 30, 14, 18, 27, 44, 41, 29, 43, 37, 34, 68, 36, 42, 94, 147, 58, 88, 47, 186, 93, 142, 75, 110, 90, 112, 67, 178, 228, 82, 114, 100, 222, 187, 105, 191, 143, 204, 131, 180, 115, 172, 177, 197, 133, 263, 272, 353, 175, 231, 242, 322, 157]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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