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.

A139538 Odd numbers of the form x^2+5y^2 not divisible by 5, with both x and y >== 1.

Table of values

n a(n)
1 9
2 21
3 29
4 41
5 49
6 61
7 69
8 81
9 89
10 101
11 109
12 129
13 141
14 149
15 161
16 181
17 189
18 201
19 229
20 241
21 249
22 261
23 269
24 281
25 301
26 309
27 321
28 329
29 349
30 369
31 381
32 389
33 401
34 409
35 421
36 441
37 449
38 461
39 469
40 489
41 501
42 509
43 521
44 529
45 541
46 549
47 569
48 581
49 601
50 609
51 621
52 641
53 661
54 669

List of values

[9, 21, 29, 41, 49, 61, 69, 81, 89, 101, 109, 129, 141, 149, 161, 181, 189, 201, 229, 241, 249, 261, 269, 281, 301, 309, 321, 329, 349, 369, 381, 389, 401, 409, 421, 441, 449, 461, 469, 489, 501, 509, 521, 529, 541, 549, 569, 581, 601, 609, 621, 641, 661, 669]