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.

A277913 Nonsquare numbers n for which the smallest y>0 solution of the Pellian equation x^2 - n*y^2 = 1 divides n.

Table of values

n a(n)
1 2
2 3
3 6
4 8
5 12
6 15
7 20
8 24
9 30
10 35
11 42
12 48
13 56
14 60
15 63
16 68
17 72
18 75
19 78
20 80
21 84
22 87
23 90
24 99
25 110
26 120
27 132
28 143
29 156
30 168
31 180
32 182
33 195
34 210
35 224
36 240
37 248
38 255
39 264
40 272
41 288
42 306
43 312
44 318
45 323
46 330
47 336
48 342
49 360
50 380
51 399
52 420
53 440
54 462
55 483
56 506
57 528
58 552
59 564
60 575
61 588

List of values

[2, 3, 6, 8, 12, 15, 20, 24, 30, 35, 42, 48, 56, 60, 63, 68, 72, 75, 78, 80, 84, 87, 90, 99, 110, 120, 132, 143, 156, 168, 180, 182, 195, 210, 224, 240, 248, 255, 264, 272, 288, 306, 312, 318, 323, 330, 336, 342, 360, 380, 399, 420, 440, 462, 483, 506, 528, 552, 564, 575, 588]