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.

A013643 Numbers k such that the continued fraction for sqrt(k) has period 3.

Table of values

n a(n)
1 41
2 130
3 269
4 370
5 458
6 697
7 986
8 1313
9 1325
10 1613
11 1714
12 2153
13 2642
14 2834
15 3181
16 3770
17 4409
18 4778
19 4933
20 5098
21 5837
22 5954
23 6626
24 7465
25 7610
26 8354
27 9293
28 10282
29 10865
30 11257
31 11321
32 12410
33 13033
34 13549
35 14698
36 14738
37 15977
38 17266
39 17989

List of values

[41, 130, 269, 370, 458, 697, 986, 1313, 1325, 1613, 1714, 2153, 2642, 2834, 3181, 3770, 4409, 4778, 4933, 5098, 5837, 5954, 6626, 7465, 7610, 8354, 9293, 10282, 10865, 11257, 11321, 12410, 13033, 13549, 14698, 14738, 15977, 17266, 17989]