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.

A349663 Positive numbers x for which x^2 can be expressed as z^2 - y^4 with y != 0.

Table of values

n a(n)
1 3
2 12
3 15
4 17
5 27
6 30
7 40
8 42
9 48
10 60
11 63
12 68
13 75
14 77
15 90
16 95
17 99
18 105
19 108
20 112
21 120
22 130
23 135
24 140
25 147
26 153
27 156
28 160
29 165
30 168
31 192
32 195
33 220
34 240
35 243
36 252
37 270
38 272
39 273
40 300
41 301
42 308
43 312
44 315
45 323
46 350
47 360
48 363
49 375
50 378
51 380
52 396
53 399
54 420
55 425
56 432
57 448
58 462
59 480
60 495
61 507

List of values

[3, 12, 15, 17, 27, 30, 40, 42, 48, 60, 63, 68, 75, 77, 90, 95, 99, 105, 108, 112, 120, 130, 135, 140, 147, 153, 156, 160, 165, 168, 192, 195, 220, 240, 243, 252, 270, 272, 273, 300, 301, 308, 312, 315, 323, 350, 360, 363, 375, 378, 380, 396, 399, 420, 425, 432, 448, 462, 480, 495, 507]

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

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