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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.

A212354 a(n) is the second smallest positive incongruent solutions of the congruence x^2 + (x+1)^2 == 0 (mod prime), where prime = A002144(n) (Pythagorean primes).

Table of values

n a(n)
1 3
2 10
3 10
4 20
5 21
6 36
7 41
8 55
9 59
10 61
11 59
12 55
13 92
14 105
15 118
16 96
17 92
18 126
19 171
20 152
21 105
22 175
23 188
24 152
25 136
26 175
27 168
28 254
29 215
30 300
31 215
32 242
33 242
34 197
35 238
36 331
37 365
38 210
39 337
40 406
41 343
42 415
43 402
44 254
45 358
46 403
47 296
48 337
49 327
50 300
51 554
52 538
53 595
54 405

List of values

[3, 10, 10, 20, 21, 36, 41, 55, 59, 61, 59, 55, 92, 105, 118, 96, 92, 126, 171, 152, 105, 175, 188, 152, 136, 175, 168, 254, 215, 300, 215, 242, 242, 197, 238, 331, 365, 210, 337, 406, 343, 415, 402, 254, 358, 403, 296, 337, 327, 300, 554, 538, 595, 405]

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

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