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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.

A379985 Numbers k such that k^2 is of the form b^2 + (4*c)^2 where b*c is squarefree.

Table of values

n a(n)
1 5
2 13
3 17
4 25
5 29
6 37
7 61
8 65
9 85
10 109
11 137
12 145
13 149
14 157
15 169
16 173
17 193
18 197
19 205
20 221
21 229
22 241
23 265
24 269
25 293
26 305
27 325
28 365
29 377
30 401
31 409
32 421
33 433
34 445
35 485
36 505
37 533
38 541
39 557
40 565
41 569
42 629
43 673
44 685
45 689
46 701
47 709
48 725
49 761
50 773
51 797

List of values

[5, 13, 17, 25, 29, 37, 61, 65, 85, 109, 137, 145, 149, 157, 169, 173, 193, 197, 205, 221, 229, 241, 265, 269, 293, 305, 325, 365, 377, 401, 409, 421, 433, 445, 485, 505, 533, 541, 557, 565, 569, 629, 673, 685, 689, 701, 709, 725, 761, 773, 797]

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

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