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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.

A139692 Nonnegative discriminants of the monic general quartic polynomials with integer coefficients.

Table of values

n a(n)
1 0
2 5
3 12
4 20
5 21
6 32
7 40
8 45
9 48
10 49
11 60
12 77
13 81
14 85
15 96
16 104
17 112
18 117
19 125
20 140
21 144
22 148
23 165
24 169
25 189
26 192
27 216
28 221
29 224
30 229
31 252
32 256
33 257
34 260
35 272
36 285
37 288
38 320
39 321
40 333
41 357
42 361
43 392
44 400
45 404
46 432
47 437
48 468
49 469
50 473
51 480
52 488
53 500
54 512
55 525
56 528
57 533
58 544
59 549

List of values

[0, 5, 12, 20, 21, 32, 40, 45, 48, 49, 60, 77, 81, 85, 96, 104, 112, 117, 125, 140, 144, 148, 165, 169, 189, 192, 216, 221, 224, 229, 252, 256, 257, 260, 272, 285, 288, 320, 321, 333, 357, 361, 392, 400, 404, 432, 437, 468, 469, 473, 480, 488, 500, 512, 525, 528, 533, 544, 549]

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

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