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.

A197172 Values k such that singular quadratic unity of Q(k) have gcd(k, y) = 3.

Table of values

n a(n)
2 69
3 87
4 93
5 159
6 177
7 183
8 249
9 267
10 276
11 312
12 321
13 327
14 348
15 372
16 387
17 417
18 471
19 597
20 633
21 636
22 699
23 711
24 717
25 723
26 741
27 747
28 831
29 849
30 879
31 921
32 927
33 987
34 993
35 1005
36 1068
37 1104
38 1137
39 1179
40 1248
41 1251
42 1272
43 1293
44 1299
45 1317
46 1320
47 1353
48 1359
49 1383
50 1392

List of values

[69, 87, 93, 159, 177, 183, 249, 267, 276, 312, 321, 327, 348, 372, 387, 417, 471, 597, 633, 636, 699, 711, 717, 723, 741, 747, 831, 849, 879, 921, 927, 987, 993, 1005, 1068, 1104, 1137, 1179, 1248, 1251, 1272, 1293, 1299, 1317, 1320, 1353, 1359, 1383, 1392]