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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.

A013650 Numbers k such that the period of the continued fraction for sqrt(k) contains exactly three 1's.

Table of values

n a(n)
1 7
2 32
3 75
4 88
5 136
6 215
7 279
8 280
9 312
10 403
11 427
12 560
13 711
14 736
15 851
16 880
17 923
18 1007
19 1067
20 1272
21 1311
22 1363
23 1431
24 1495
25 1736
26 1855
27 1887
28 1955
29 1976
30 1995
31 2128
32 2159
33 2184
34 2272
35 2511
36 2567
37 2640
38 2728
39 2880
40 3055
41 3211
42 3560
43 3751
44 3811
45 3927
46 3984

List of values

[7, 32, 75, 88, 136, 215, 279, 280, 312, 403, 427, 560, 711, 736, 851, 880, 923, 1007, 1067, 1272, 1311, 1363, 1431, 1495, 1736, 1855, 1887, 1955, 1976, 1995, 2128, 2159, 2184, 2272, 2511, 2567, 2640, 2728, 2880, 3055, 3211, 3560, 3751, 3811, 3927, 3984]

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

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