cp's OEIS Frontend

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.

A197120 Nonsquare positive integers n such that the fundamental unit of quadratic field Q(sqrt(d))has norm -1 and minimum one from two parts of fundamental unit are not integer.

Table of values

n a(n)
1 5
2 13
3 20
4 29
5 45
6 52
7 53
8 61
9 80
10 85
11 109
12 116
13 117
14 125
15 149
16 157
17 173
18 180
19 181
20 208
21 212
22 229
23 244
24 245
25 261
26 277
27 293
28 317
29 320
30 325
31 340
32 365
33 397
34 405
35 421
36 436
37 445
38 461
39 464
40 468
41 477
42 493
43 500
44 509
45 533
46 541
47 549
48 565
49 596
50 605
51 613
52 628
53 629
54 637

List of values

[5, 13, 20, 29, 45, 52, 53, 61, 80, 85, 109, 116, 117, 125, 149, 157, 173, 180, 181, 208, 212, 229, 244, 245, 261, 277, 293, 317, 320, 325, 340, 365, 397, 405, 421, 436, 445, 461, 464, 468, 477, 493, 500, 509, 533, 541, 549, 565, 596, 605, 613, 628, 629, 637]

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

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