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.

A316743 Discriminants of imaginary fields whose class group has exponent 2, negated.

Table of values

n a(n)
1 15
2 20
3 24
4 35
5 40
6 51
7 52
8 84
9 88
10 91
11 115
12 120
13 123
14 132
15 148
16 168
17 187
18 195
19 228
20 232
21 235
22 267
23 280
24 312
25 340
26 372
27 403
28 408
29 420
30 427
31 435
32 483
33 520
34 532
35 555
36 595
37 627
38 660
39 708
40 715
41 760
42 795
43 840
44 1012
45 1092
46 1155
47 1320
48 1380
49 1428
50 1435
51 1540
52 1848
53 1995
54 2280
55 3003
56 3315
57 5460

List of values

[15, 20, 24, 35, 40, 51, 52, 84, 88, 91, 115, 120, 123, 132, 148, 168, 187, 195, 228, 232, 235, 267, 280, 312, 340, 372, 403, 408, 420, 427, 435, 483, 520, 532, 555, 595, 627, 660, 708, 715, 760, 795, 840, 1012, 1092, 1155, 1320, 1380, 1428, 1435, 1540, 1848, 1995, 2280, 3003, 3315, 5460]