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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.

A092581 a(n) is the least prime such that a(n-1) is a quadratic non-residue of a(n).

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 19
8 23
9 31
10 37
11 43
12 47
13 59
14 61
15 67
16 71
17 79
18 83
19 89
20 101
21 103
22 107
23 109
24 127
25 131
26 137
27 149
28 151
29 157
30 163
31 167
32 179
33 181
34 191
35 199
36 227
37 229
38 239
39 251
40 257
41 263
42 271
43 277
44 283
45 307
46 311
47 331
48 347
49 349
50 359
51 367
52 373
53 379
54 383
55 409
56 431
57 439

List of values

[2, 3, 5, 7, 11, 13, 19, 23, 31, 37, 43, 47, 59, 61, 67, 71, 79, 83, 89, 101, 103, 107, 109, 127, 131, 137, 149, 151, 157, 163, 167, 179, 181, 191, 199, 227, 229, 239, 251, 257, 263, 271, 277, 283, 307, 311, 331, 347, 349, 359, 367, 373, 379, 383, 409, 431, 439]