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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.

A013644 Numbers k such that the continued fraction for sqrt(k) has period 4.

Table of values

n a(n)
1 7
2 14
3 23
4 28
5 32
6 33
7 34
8 47
9 55
10 60
11 62
12 75
13 78
14 79
15 95
16 96
17 98
18 119
19 126
20 128
21 136
22 138
23 140
24 141
25 142
26 155
27 167
28 174
29 176
30 180
31 189
32 192
33 194
34 215
35 219
36 220
37 222
38 223
39 248
40 252
41 254
42 266
43 287
44 299
45 300
46 305
47 312
48 315
49 318
50 320
51 321
52 322
53 335
54 359
55 368
56 377
57 390
58 392

List of values

[7, 14, 23, 28, 32, 33, 34, 47, 55, 60, 62, 75, 78, 79, 95, 96, 98, 119, 126, 128, 136, 138, 140, 141, 142, 155, 167, 174, 176, 180, 189, 192, 194, 215, 219, 220, 222, 223, 248, 252, 254, 266, 287, 299, 300, 305, 312, 315, 318, 320, 321, 322, 335, 359, 368, 377, 390, 392]

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

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