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.

A357573 Largest even k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists.

Table of values

n a(n)
1 232
2 1012
3 1588
4 3448
5 5272
6 8248
7 9172
8 14008
9 21652
10 21508
11 26548
12 32008
13 45208
14 53188
15 57688
16 65668
17 73588
18 85012
19 121972
20 120712
21 117748
22 137272
23 189352
24 162628
25 174868
26 201268
27 194968
28 249208
29 188248
30 332872
31 341608
32 424708
33 370792
34 411832
35 377512
36 539092
37 332308
38 486088
39 369832
40 435268
41 604948
42 667192
43 548788
44 601528
45 596212
46 566008
47 737752
48 795832
49 645208
50 802888

List of values

[232, 1012, 1588, 3448, 5272, 8248, 9172, 14008, 21652, 21508, 26548, 32008, 45208, 53188, 57688, 65668, 73588, 85012, 121972, 120712, 117748, 137272, 189352, 162628, 174868, 201268, 194968, 249208, 188248, 332872, 341608, 424708, 370792, 411832, 377512, 539092, 332308, 486088, 369832, 435268, 604948, 667192, 548788, 601528, 596212, 566008, 737752, 795832, 645208, 802888]