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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.

A307530 Primes p for which the continued fraction expansion of sqrt(p) has a single 1 starting at second position.

Table of values

n a(n)
1 3
2 23
3 47
4 59
5 61
6 79
7 97
8 137
9 139
10 163
11 167
12 191
13 193
14 223
15 251
16 281
17 283
18 313
19 317
20 349
21 353
22 359
23 389
24 397
25 431
26 433
27 439
28 479
29 521
30 523
31 563
32 569
33 571
34 613
35 617
36 619
37 659
38 661
39 673
40 719
41 727
42 769
43 773
44 823
45 827
46 829
47 839
48 881
49 883
50 887
51 941
52 947
53 953
54 1009

List of values

[3, 23, 47, 59, 61, 79, 97, 137, 139, 163, 167, 191, 193, 223, 251, 281, 283, 313, 317, 349, 353, 359, 389, 397, 431, 433, 439, 479, 521, 523, 563, 569, 571, 613, 617, 619, 659, 661, 673, 719, 727, 769, 773, 823, 827, 829, 839, 881, 883, 887, 941, 947, 953, 1009]

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

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