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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.

A309090 a(n) is the least x such that x^2 mod prime(i), i=1..n, are all distinct.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 3
6 172
7 213
8 213
9 333
10 333
11 1228
12 1438
13 2152
14 3832
15 3832
16 3832
17 5792
18 22732
19 22732
20 37342
21 37342
22 37342
23 37342
24 37342
25 545408
26 629247
27 629247
28 629247
29 629247
30 629247
31 629247
32 629247
33 629247
34 1423713
35 8136838
36 8136838

List of values

[1, 2, 2, 3, 3, 172, 213, 213, 333, 333, 1228, 1438, 2152, 3832, 3832, 3832, 5792, 22732, 22732, 37342, 37342, 37342, 37342, 37342, 545408, 629247, 629247, 629247, 629247, 629247, 629247, 629247, 629247, 1423713, 8136838, 8136838]

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

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