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.

A317987 Discriminants of orders of imaginary quadratic fields with 2 classes per genus, negated.

Table of values

n a(n)
1 39
2 55
3 56
4 63
5 68
6 80
7 128
8 136
9 144
10 155
11 156
12 171
13 184
14 196
15 203
16 208
17 219
18 220
19 224
20 252
21 256
22 259
23 260
24 264
25 275
26 276
27 291
28 292
29 308
30 320
31 323
32 328
33 336
34 355
35 360
36 363
37 384
38 387
39 388
40 400
41 456
42 468
43 475
44 504
45 507
46 528
47 544
48 552
49 564
50 568
51 576
52 580
53 592
54 600
55 603
56 612
57 616
58 624
59 640

List of values

[39, 55, 56, 63, 68, 80, 128, 136, 144, 155, 156, 171, 184, 196, 203, 208, 219, 220, 224, 252, 256, 259, 260, 264, 275, 276, 291, 292, 308, 320, 323, 328, 336, 355, 360, 363, 384, 387, 388, 400, 456, 468, 475, 504, 507, 528, 544, 552, 564, 568, 576, 580, 592, 600, 603, 612, 616, 624, 640]

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

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